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D20 Dice

The d20 is the most important and coveted die used in Dungeon & Dragons. It is an icosahedron, a polyhedron...
D20 Dice

The d20 is the most important and coveted die used in Dungeon & Dragons. It is an icosahedron, a polyhedron with 20 equilateral triangles, that is numbered 1 to 20. The numbers are arranged so that the largest number (20) is on the opposite side of the smallest number (1), the 2nd largest number (19) is on the opposite side of the 2nd smallest number (2), and so on. The sum of the opposite sides is always 21. Typically, a standard sized d20 measures 19mm to 20mm tall.

d20 dice are central to the core mechanics of many actions in Dungeons and Dragons: it determines if an attempt at something is successful such as attacks, saving throws, skill checks, and ability checks.

  • Set of 10 D20 19mm Opaque Rainbow Dice - White with Multicolor Numbers
    $9.12
    Original price $9.12 - Original price $9.12
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    Current price $9.12

    Koplow Games Set of 10 D20 19mm Opaque Rainbow Dice - White with Multicolor Numbers

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    3 reviews

    These 19mm D20 white dice are numbered 1 to 20 with multicolored numbers etched into the surface of the dice and painted. The 10 dice come enclosed...

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    $9.12
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    $9.12 - $9.12
    Current price $9.12
  • 55mm Jumbo 20-Sided D20 Countdown Dice - Transparent Pearl Gold
    $16.21
    Original price $16.21 - Original price $16.21
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    $16.21 - $16.21
    Current price $16.21

    Koplow Games 55mm Jumbo 20-Sided D20 Countdown Dice - Transparent Pearl Gold

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    1 review

    This 20 sided very large 55mm (2.16 inch) die is numbered 1 to 20 with numerals etched into the surface and painted gold. Great looking and rolling...

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    $16.21
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    Current price $16.21
  • Set of 2 D20 24mm Double Dice, 2-In-1 Dice - White Inside Translucent Green Die
    $2.38
    Original price $2.38 - Original price $2.38
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    Current price $2.38

    Koplow Games Set of 2 D20 24mm Double Dice, 2-In-1 Dice - White Inside Translucent Green Die

    FREE Shipping over $55

    Turn 1 roll into 2 with these fun and unique D20 'double dice'. Both dice are numbered 1 to 20 with the numbers written out and etched into the sur...

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    $2.38
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    $2.38 - $2.38
    Current price $2.38
  • Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - Red with White Numbers Die
    $9.99
    Original price $9.99 - Original price $9.99
    Original price
    $9.99 - $9.99
    Current price $9.99

    Koplow Games Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - Red with White Numbers Die

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    These 20 sided 19mm dice are numbered 1 to 20 - each side has a number etched into the surface and painted. The 6 and 9 are marked with a dot at th...

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    $9.99
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    Original price
    $9.99 - $9.99
    Current price $9.99
  • Set of 2 D20 24mm Double Dice, 2-In-1 Dice - White Inside Translucent Red Die
    $2.78
    Original price $2.78 - Original price $2.78
    Original price
    $2.78 - $2.78
    Current price $2.78

    Koplow Games Set of 2 D20 24mm Double Dice, 2-In-1 Dice - White Inside Translucent Red Die

    FREE Shipping over $55

    Turn 1 roll into 2 with these fun and unique D20 'double dice'. Both dice are numbered 1 to 20 with the numbers written out and etched into the sur...

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    $2.78
    Original price $2.78 - Original price $2.78
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    $2.78 - $2.78
    Current price $2.78
  • Set of 10 D20 19mm Inverse Dice - 5 Each of Black and White
    $5.79
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    Koplow Games Set of 10 D20 19mm Inverse Dice - 5 Each of Black and White

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    These 19mm D20 dice are numbered one to six with traditional dice pips, spots, etched into the surface of the dice and painted.. Great for using in...

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    $5.79
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  • Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Red with White Numbers Die
    $6.49
    Original price $6.49 - Original price $6.49
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    $6.49 - $6.49
    Current price $6.49

    Koplow Games Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Red with White Numbers Die

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    These 20-sided 19mm red dice are numbered 1 to 20 - each side has a number etched into the surface and painted white. The top number displayed on a...

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    $6.49
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    $6.49 - $6.49
    Current price $6.49
  • Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D White with Black Numbers Die
    $3.49
    Original price $3.49 - Original price $3.49
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    $3.49 - $3.49
    Current price $3.49

    Koplow Games Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D White with Black Numbers Die

    FREE Shipping over $55
    1 review

    These 20-sided 19mm white dice are numbered 1 to 20 - each side has a number etched into the surface and painted black. The top number displayed on...

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    $3.49
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    $3.49 - $3.49
    Current price $3.49
  • Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - Yellow with Black Numbers Die
    $5.79
    Original price $5.79 - Original price $5.79
    Original price
    $5.79 - $5.79
    Current price $5.79

    Koplow Games Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - Yellow with Black Numbers Die

    FREE Shipping over $55

    These 20 sided 19mm dice are numbered 1 to 20 - each side has a number etched into the surface and painted. The 6 and 9 are marked with a dot at th...

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    $5.79
    Original price $5.79 - Original price $5.79
    Original price
    $5.79 - $5.79
    Current price $5.79
  • 55mm Jumbo 20-Sided D20 Countdown Dice - Opaque Black with White Numbers
    $13.12
    Original price $13.12 - Original price $13.12
    Original price
    $13.12 - $13.12
    Current price $13.12

    Koplow Games 55mm Jumbo 20-Sided D20 Countdown Dice - Opaque Black with White Numbers

    FREE Shipping over $55

    This 20 sided very large 55mm (2.16 inch) die is numbered 1 to 20 with numerals etched into the surface and painted white. Great looking and rollin...

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    $13.12
    Original price $13.12 - Original price $13.12
    Original price
    $13.12 - $13.12
    Current price $13.12
  • Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - Black with White Numbers Die
    $5.79
    Original price $5.79 - Original price $5.79
    Original price
    $5.79 - $5.79
    Current price $5.79

    Koplow Games Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - Black with White Numbers Die

    FREE Shipping over $55

    These 20 sided 19mm dice are numbered 1 to 20 - each side has a number etched into the surface and painted. The 6 and 9 are marked with a dot at th...

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    $5.79
    Original price $5.79 - Original price $5.79
    Original price
    $5.79 - $5.79
    Current price $5.79
  • Pack of 2 D20 Opaque 29mm Jumbo Dice - Black with White Numbers
    $4.99
    Original price $4.99 - Original price $4.99
    Original price
    $4.99 - $4.99
    Current price $4.99

    Koplow Games Pack of 2 D20 Opaque 29mm Jumbo Dice - Black with White Numbers

    FREE Shipping over $55
    1 review

    Pack of 2 D20 Opaque Jumbo Dice - Black with White Numbers

    $4.99
    Original price $4.99 - Original price $4.99
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    $4.99 - $4.99
    Current price $4.99
  • Set of 12 D20 19mm Patriotic Dice - 4 Each of Red White and Blue
    $4.90
    Original price $4.90 - Original price $4.90
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    $4.90 - $4.90
    Current price $4.90

    Koplow Games Set of 12 D20 19mm Patriotic Dice - 4 Each of Red White and Blue

    FREE Shipping over $55
    1 review

    These 19mm D20 'Patriotic' dice are numbered 1 to 6 with pips, spots, etched into the surface of the dice and painted. The 12 dice come enclosed in...

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    $4.90
    Original price $4.90 - Original price $4.90
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    $4.90 - $4.90
    Current price $4.90
  • 20mm Zinc Metal Alloy 20 Sided D20 Dice - Silver with Red Numbers
    $6.64
    Original price $6.64 - Original price $6.64
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    $6.64 - $6.64
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    Koplow Games 20mm Zinc Metal Alloy 20 Sided D20 Dice - Silver with Red Numbers

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    You're going to love the look and feel of this metal die! It has numbers 1 through 20 etched into the surface and painted red. It stands ~19.5mm ta...

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    $6.64
    Original price $6.64 - Original price $6.64
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    $6.64 - $6.64
    Current price $6.64
  • Pack of 2 D20 Opaque 29mm Jumbo Dice - White with Black Numbers
    $4.99
    Original price $4.99 - Original price $4.99
    Original price
    $4.99 - $4.99
    Current price $4.99

    Koplow Games Pack of 2 D20 Opaque 29mm Jumbo Dice - White with Black Numbers

    FREE Shipping over $55
    1 review

    Pack of 2 D20 Opaque Jumbo Dice - White with Black Numbers

    $4.99
    Original price $4.99 - Original price $4.99
    Original price
    $4.99 - $4.99
    Current price $4.99
  • Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - White with Black Numbers Die
    $5.79
    Original price $5.79 - Original price $5.79
    Original price
    $5.79 - $5.79
    Current price $5.79

    Koplow Games Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - White with Black Numbers Die

    FREE Shipping over $55

    These 20 sided 19mm dice are numbered 1 to 20 - each side has a number etched into the surface and painted. The 6 and 9 are marked with a dot at th...

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    $5.79
    Original price $5.79 - Original price $5.79
    Original price
    $5.79 - $5.79
    Current price $5.79
  • Large 22mm Zinc Metal Alloy Countdown D20 Dice w Black Bag, 1 Pc - Green Numbers
    $8.01
    Original price $8.01 - Original price $8.01
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    $8.01 - $8.01
    Current price $8.01

    Koplow Games Large 22mm Zinc Metal Alloy Countdown D20 Dice w Black Bag, 1 Pc - Green Numbers

    FREE Shipping over $55

    You're going to love the look and feel of this metal die! It has numbers 1 through 20 (countdown style) etched into the surface and painted green. ...

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    $8.01
    Original price $8.01 - Original price $8.01
    Original price
    $8.01 - $8.01
    Current price $8.01
  • Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - Green with White Numbers Die
    $5.79
    Original price $5.79 - Original price $5.79
    Original price
    $5.79 - $5.79
    Current price $5.79

    Koplow Games Set of 10 Twenty Sided 19mm D20 Opaque RPG Dice - Green with White Numbers Die

    FREE Shipping over $55

    These 20 sided 19mm dice are numbered 1 to 20 - each side has a number etched into the surface and painted. The 6 and 9 are marked with a dot at th...

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    $5.79
    Original price $5.79 - Original price $5.79
    Original price
    $5.79 - $5.79
    Current price $5.79
  • Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Green with White Numbers Die
    $3.49
    Original price $3.49 - Original price $3.49
    Original price
    $3.49 - $3.49
    Current price $3.49

    Koplow Games Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Green with White Numbers Die

    FREE Shipping over $55
    2 reviews

    These 20-sided 19mm green dice are numbered 1 to 20 - each side has a number etched into the surface and painted white. The top number displayed on...

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    $3.49
    Original price $3.49 - Original price $3.49
    Original price
    $3.49 - $3.49
    Current price $3.49
  • Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Blue with White Numbers Die
    $3.49
    Original price $3.49 - Original price $3.49
    Original price
    $3.49 - $3.49
    Current price $3.49

    Koplow Games Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Blue with White Numbers Die

    FREE Shipping over $55

    These 20-sided 19mm blue dice are numbered 1 to 20 - each side has a number etched into the surface and painted white. The top number displayed on ...

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    $3.49
    Original price $3.49 - Original price $3.49
    Original price
    $3.49 - $3.49
    Current price $3.49
  • Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Yellow with Black Numbers Die
    $3.49
    Original price $3.49 - Original price $3.49
    Original price
    $3.49 - $3.49
    Current price $3.49

    Koplow Games Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Yellow with Black Numbers Die

    FREE Shipping over $55

    These 20-sided 19mm yellow dice are numbered 1 to 20 - each side has a number etched into the surface and painted black. The top number displayed o...

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    $3.49
    Original price $3.49 - Original price $3.49
    Original price
    $3.49 - $3.49
    Current price $3.49
  • Pack of 2 D20 Opaque 29mm Jumbo Dice - Red with White Numbers
    $5.19
    Original price $5.19 - Original price $5.19
    Original price
    $5.19 - $5.19
    Current price $5.19

    Koplow Games Pack of 2 D20 Opaque 29mm Jumbo Dice - Red with White Numbers

    FREE Shipping over $55

    Pack of 2 D20 Opaque Jumbo Dice - Red with White Numbers

    $5.19
    Original price $5.19 - Original price $5.19
    Original price
    $5.19 - $5.19
    Current price $5.19
  • Pack of 10 D20 20mm Koplow Games Pearl Dice - Purple
    $9.99
    Original price $9.99 - Original price $9.99
    Original price
    $9.99 - $9.99
    Current price $9.99

    Koplow Games Pack of 10 D20 20mm Pearl Dice - Purple
    FREE Shipping over $55

    These twenty sided 20mm pearlized dice are numbered from one to twenty with numbers, not pips, and feel great in your hands. These pearlized dice a...

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    $9.99
    Original price $9.99 - Original price $9.99
    Original price
    $9.99 - $9.99
    Current price $9.99
  • Large 22mm Zinc Metal Alloy Countdown D20 Dice with Black Pippd Bag- Red Numbers
    $8.01
    Original price $8.01 - Original price $8.01
    Original price
    $8.01 - $8.01
    Current price $8.01

    Koplow Games Large 22mm Zinc Metal Alloy Countdown D20 Dice with Black Pippd Bag- Red Numbers

    FREE Shipping over $55

    You're going to love the look and feel of this metal die! It has numbers 1 through 20 (countdown style) etched into the surface and painted red. It...

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    $8.01
    Original price $8.01 - Original price $8.01
    Original price
    $8.01 - $8.01
    Current price $8.01
  • Pack of 10 D20 20mm Koplow Games Pearl Dice - Charcoal
    $8.03
    Original price $8.03 - Original price $8.03
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    $8.03 - $8.03
    Current price $8.03

    Koplow Games Pack of 10 D20 20mm Pearl Dice - Charcoal
    FREE Shipping over $55

    These twenty sided 20mm pearlized dice are numbered from one to twenty with numbers, not pips, and feel great in your hands. These pearlized dice a...

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    $8.03
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    Original price
    $8.03 - $8.03
    Current price $8.03
  • Large 22mm Zinc Metal Alloy Countdown D20 Dice w Black Bag, 1 Pc - White Numbers
    $9.20
    Original price $9.20 - Original price $9.20
    Original price
    $9.20 - $9.20
    Current price $9.20

    Koplow Games Large 22mm Zinc Metal Alloy Countdown D20 Dice w Black Bag, 1 Pc - White Numbers

    FREE Shipping over $55

    You're going to love the look and feel of this metal die! It has numbers 1 through 20 (countdown style) etched into the surface and painted white. ...

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    $9.20
    Original price $9.20 - Original price $9.20
    Original price
    $9.20 - $9.20
    Current price $9.20
  • Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Black with White Numbers Die
    $3.49
    Original price $3.49 - Original price $3.49
    Original price
    $3.49 - $3.49
    Current price $3.49

    Koplow Games Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Black with White Numbers Die

    FREE Shipping over $55

    These 20-sided 19mm black dice are numbered 1 to 20 - each side has a number etched into the surface and painted white. The top number displayed on...

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    $3.49
    Original price $3.49 - Original price $3.49
    Original price
    $3.49 - $3.49
    Current price $3.49
  • Large 22mm Zinc Metal Alloy Countdown D20 Dice w Black Bag, 1 Pc - Blue Numbers
    $8.01
    Original price $8.01 - Original price $8.01
    Original price
    $8.01 - $8.01
    Current price $8.01

    Koplow Games Large 22mm Zinc Metal Alloy Countdown D20 Dice w Black Bag, 1 Pc - Blue Numbers

    FREE Shipping over $55

    You're going to love the look and feel of this metal die! It has numbers 1 through 20 (countdown style) etched into the surface and painted blue. I...

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    $8.01
    Original price $8.01 - Original price $8.01
    Original price
    $8.01 - $8.01
    Current price $8.01
  • Pack of 10 D20 20mm Koplow Games Glitter Dice - Blue
    $8.03
    Original price $8.03 - Original price $8.03
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    $8.03 - $8.03
    Current price $8.03

    Koplow Games Pack of 10 D20 20mm Glitter Dice - Blue
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    These twenty sided 20mm glitter dice are numbered from one to twenty with numbers, not pips, and feel great in your hands. These glitter dice are s...

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    $8.03
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    Original price
    $8.03 - $8.03
    Current price $8.03
  • Pack of 2 D20 Opaque 29mm Jumbo Dice - Blue with White Numbers
    $5.29
    Original price $5.29 - Original price $5.29
    Original price
    $5.29 - $5.29
    Current price $5.29

    Koplow Games Pack of 2 D20 Opaque 29mm Jumbo Dice - Blue with White Numbers

    FREE Shipping over $55

    Pack of 2 D20 Opaque Jumbo Dice - Blue with White Numbers

    $5.29
    Original price $5.29 - Original price $5.29
    Original price
    $5.29 - $5.29
    Current price $5.29
  • Pack of 10 D20 20mm Koplow Games Pearl Dice - Emerald
    $6.64
    Original price $6.64 - Original price $6.64
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    $6.64 - $6.64
    Current price $6.64

    Koplow Games Pack of 10 D20 20mm Pearl Dice - Emerald
    FREE Shipping over $55

    These twenty sided 20mm pearlized dice are numbered from one to twenty with numbers, not pips, and feel great in your hands. These pearlized dice a...

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    $6.64
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    Original price
    $6.64 - $6.64
    Current price $6.64
  • Set of 10 D20 19mm Olympic Pearlized Dice - Bronze with Black Numbers
    $7.49
    Original price $7.49 - Original price $7.49
    Original price
    $7.49 - $7.49
    Current price $7.49

    Koplow Games Set of 10 D20 19mm Olympic Pearlized Dice - Bronze with Black Numbers

    FREE Shipping over $55

    These 19mm D20 olympic pearlized bronze dice are numbered 1 to 20 - each side has a number etched into the surface and painted black. The top numbe...

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    $7.49
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    Original price
    $7.49 - $7.49
    Current price $7.49
  • Pack of 10 D20 20mm Koplow Games Glitter Dice - Clear
    $8.35
    Original price $8.35 - Original price $8.35
    Original price
    $8.35 - $8.35
    Current price $8.35

    Koplow Games Pack of 10 D20 20mm Glitter Dice - Clear
    FREE Shipping over $55

    These twenty sided 20mm glitter dice are numbered from one to twenty with numbers, not pips, and feel great in your hands. These glitter dice are s...

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    $8.35
    Original price $8.35 - Original price $8.35
    Original price
    $8.35 - $8.35
    Current price $8.35
  • Pack of 10 D20 20mm Koplow Games Glitter Dice - Purple
    $8.03
    Original price $8.03 - Original price $8.03
    Original price
    $8.03 - $8.03
    Current price $8.03

    Koplow Games Pack of 10 D20 20mm Glitter Dice - Purple
    FREE Shipping over $55

    These twenty sided 20mm glitter dice are numbered from one to twenty with numbers, not pips, and feel great in your hands. These glitter dice are s...

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    $8.03
    Original price $8.03 - Original price $8.03
    Original price
    $8.03 - $8.03
    Current price $8.03
  • Pack of 10 D20 Blank Standard Sized Dice - White
    $9.99
    Original price $9.99 - Original price $9.99
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    $9.99 - $9.99
    Current price $9.99

    Koplow Games Pack of 10 D20 Blank Standard Sized Dice - White

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    Pack of 10 D20 Blank Standard Sized Dice - White

    $9.99
    Original price $9.99 - Original price $9.99
    Original price
    $9.99 - $9.99
    Current price $9.99
  • Pack of 10 D20 20mm Koplow Games Glitter Dice - Green
    $6.50
    Original price $6.50 - Original price $6.50
    Original price
    $6.50 - $6.50
    Current price $6.50

    Koplow Games Pack of 10 D20 20mm Glitter Dice - Green
    FREE Shipping over $55

    These twenty sided 20mm glitter dice are numbered from one to twenty with numbers, not pips, and feel great in your hands. These glitter dice are s...

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    $6.50
    Original price $6.50 - Original price $6.50
    Original price
    $6.50 - $6.50
    Current price $6.50
  • 34mm Large 20-Sided D20 Pearlized Koplow Dice, 1 Die - Blue/Black with White
    $3.85
    Original price $3.85 - Original price $3.85
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    $3.85 - $3.85
    Current price $3.85

    Koplow Games 34mm Large 20-Sided D20 Pearlized Koplow Dice, 1 Die - Blue/Black with White

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    Roll big with this jumbo sized D20 die from Koplow Games! This d20 is sure to impress with it's stylish blue/green and black swirls, and sharply et...

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    $3.85
    Original price $3.85 - Original price $3.85
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    $3.85 - $3.85
    Current price $3.85