These 14 gram blank slugs are perfect for customizing your own poker chip set. They are a clay composite that is heavy weight and has the feel of real casino chips. They are 40mm in diameter, with a blank inlay that measures 31mm. This blank inlay is the ideal place to insert you own custom design. COLORS AVAILABLE: GRAY, RED, BLUE, GREEN, BLACK, ORANGE, PURPLE, YELLOW, LIGHT BLUE & PINK. NOTE: You may also customize your chips in multiples of 25.