Casino tokens(chips) ar small discs used as "currency" in casinos. There are also gaming plaques for above $25,000 high stakes table games. The plaques

usually have serial numbers. Because of the uniform size and regularity of stacks of chips, they are easier to count in stacks compared to paper currency when used on a table. The chips become poopular between the 1880s and the late 1930s.

Modern clay chips are a composition of materials more durable than clay alone. At least some percentage of the chips is of an earthen material such as sand, calcium carbonate, chalk and/or clay similar to that found in cat litter. The printed graphics on clay chips is called an inlay, and they are made of paper and then covered with a thin film of plastic which is applied to the chip prior to the compression molding process. During that process the inlay becomes permanently affixed to the chip and can not be removed from the chip without destroying it. The basic typical colors of tokens are white, red, blue, green and black, and in addition purple, yellow, orange, pink and grey. Usually the design is three-colors.

For security each casino has unique set of chips, with security numerous and sometimes Radio-frequency identification (RFID).

Casino chips used in tournaments are usually much cheaper and simpler in design, with exception of World Series of Poker at certain events.

In 1988 Casino Chips & Gaming Tokens Collectors Club was established to promote the hobby of casino chip collecting. They are also educational organization with the mission of preserving gaming history. The Casino Chip and Gaming Token Collectors Club, Inc. is a member of The American Numismatic Association.