These yellow 39 mm diameter casino sized chips are 11.5 grams in weight. They are produced from a composite resin and an insert that gives them the weight feel of a heavy casino quality chip. The detail on these chips is great. The edge spots are clean with each of the four suits decorating them. One side is a stylish charicature of the PokerPadz mouse pad, and the other side has the PokerPadz.com logo.