This button is a larger version of the plain white dealer button found everywhere. It is a large plastic disk with two rubber o-ring seals around the edge. It has 'Dealer' engraved into both sides. This was the largest dealer puck that I was sent, measuring just over 3" (80mm) in diameter with the rubber seals and 2.83" (72mm) without the seals. It is 0.71" (18mm) thick

Stuart Mills, 11/10/2008