The wheel consists of several elements. There is in particular a plate provided with a concave cylindrical object with a diameter of 56 centimeters. The cylinder of the wheel comprises a total of 37 small squares that are numbered from 0 to 36 depending on the model. Each cell is separated from other by boundaries, also called partitions that are generally made ​​of copper. In the game of roulette, the squares each display a specific number and have a color: they are indeed either red or black. Finally roulette has a special box on which is inscribed a zero. Gambling is composed of one or more balls are arranged on the cylinder, which provides non-contestable draw the ball rolling is performed by means of extreme precision in addition to ensuring that a regularity of optimal movements.

Found in the game a carpet of any color which is for players. It is on the carpet that they place their chips and plaques. In casinos, chips and plates are exchangeable for Fund against money. The game is governed by one or more dealers. They act as arbitrators and organize the various sessions of the game The dealers generally relayed every half hour.

The game is divided into four sequences or parts . The dealer announces the passage of a sequence to another. When the dealer announces " Place your bets ", bettors will place their bets on the table. Once this is done, the dealer goes on to say " The die is cast "and the opportunity to turn the cylinder in one direction. The ball is in turn launched in the direction opposite. Few seconds before the ball stops on a box, the dealer announces " There will no longer " which means that players can not change their bets on the table.

In Roulette, several types of paris are available. Participants have the opportunity to choose between single paris (they choose to focus on one box numbered) or multiple (they prefer to focus on several numbered boxes simultaneously). Simple paris are numerous: players can bet on a black square, a red square, a odd or even number or opt for a gamble in areas "pass" or "lack" of the table. A roulette, however it is impossible to bet on zero.

There are several variations of the wheel. If the French and castors European count 37 numbers , English roulette comprises an equal number of cells but plays differently. Indeed, a limited number of players can try his luck in the English roulette unlike the first two versions, has the originality to offer colorful chips on the table. Despite the popularity of the first three variants mentioned, it is the American roulette is most commonly practiced. The numbered boxes are arranged differently and has a double zero box. Another variant, the Mexican roulette, even includes a triple square one!