Missing a vital part of your Roulette game? This precision Roulette Ball is designed to work perfectly with smaller Roulette Wheels. Made of 100% ceramic, this Roulette Ball is the perfect replacement or extra for your at home game. 1/2 inch replacement ball for your roulette wheel. Roulette Ball measures 1/2". * 1 individual ball * solid white * 100% ceramic * 1/2 inch in diameter NOTE: We also have a plastic 1/2" and a 3/4" ball sold on this site..