The additional pocket on the casino American wheel is a "double zero". American roulette has 38 pockets, while European roulette has 37 pockets. View the official website of mostbet bookmaker for players from Azerbaijan. View the official website of mostbet bookmaker for players from Azerbaijan. . The additional pocket on the casino American wheel is a "double zero". Account registration, virtual sports, bonuses and mobile. Account registration, virtual sports, bonuses and mobile. American roulette has 38 pockets, while European roulette has 37 pockets.