Roulette need is a term used to describe the necessary equipment for playing the game of roulette. It consists of a WHEEL, which is a large, round, rotating device with numbered slots, and a ball, which is a small, round object that is spun around the WHEEL. The WHEEL and ball are used to determine the outcome of each spin of the roulette WHEEL. Roulette need also includes a betting table, which is a flat surface where players can place their bets.