The earliest roulette balls were made of either ivory or wood. Modern balls are made out of teflon, acetal, nylon or phenolic. The different materials cause different ball behavior. The Main Types of Roulette Balls The various roulette ball sizes are 3/8 inch, 7/16 inch, 1/2 inch, 5/8 inch and 3/4 inch. But almost every modern casino will use either 5/8 inch […]
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