Trademark Poker Buy/Lay Chip Button for Craps, Set of 10 Casino Quality 1 1/4 inch Dia. This 1 1/4 inch Diameter buy/lay chip button has the words "BUY" on one side and "LAY" on the other side engraved into the chip. The thickness of the button is about 1/8 inch thick. This is the same one as used in the casino.