I wasn't shopping for dice this small, and only added them due to the Pippd bonus program as a "free gift" for purchasing a certain dollar amount. Of the options available, I selected these because I wanted to see how small 5mm really were in real life. Being compared to a penny, as pictured, only paints half the picture. You can get an idea that these are small, but, until you have seen them in your own hand, you can't appreciate how small 5mm dice really are. These ... are ... small. The color of the green is uniform. The pips are not uniformly painted. I measured the dice with my calipers, and they are fractionally irregular in shape. The dice range 5mm on a side to fractionally more, or less, but, they are not true cubes. Due to their overall size will this play a factor in your long-term results? Probably not. They are "cute" and in my big meaty palms, they are so small! If you need to roll a large number of 6 sided dice, and don't wish to have 50 large/typically sized D6 to roll, these would do well enough. In the end, due to both the lack of quality control on their pips being painted uniformly and the size irregularity, I deducted 2 stars. I would only recommend these dice to anyone that is not concerned about the bias of their irregular shape (they are not true cubes) or the likelihood that the pips will not be uniformly painted. In the end, I would not buy these again for myself.