(c) A single zero Roulette wheel must have 37 equally spaced compartments around the wheel where the Roulette ball may come to rest. (b) Roulette shall be played on a table having a Roulette wheel of at least 30 inches in diameter at one end of the table and a Roulette layout imprinted on the opposite end of the table. (a) A ball used in Roulette must be made completely of a nonmetallic substance and not less than 12/16 inch nor more than 14/16 inch in diameter. § 617a.1. Roulette ball Roulette wheel and table physical characteristics double zero Roulette wheel used as a single zero Roulette wheel. The provisions of this Chapter 617a adopted May 18, 2012, effective May 19, 2012, 42 Pa.B. The provisions of this Chapter 617a issued under 4 Pa.C.S. Roulette ball Roulette wheel and table physical characteristics double zero Roulette wheel used as a single zero Roulette wheel.