Kettlebells are a type of weight training equipment that resemble a cannonball with a handle. They are typically made of cast iron or steel and come in various weights, making them suitable for different fitness levels. Kettlebells are used for a variety of exercises that improve strength, endurance, and flexibility. The unique shape of kettlebells allows for a range of dynamic movements, such as swings, snatches, and Turkish get-ups. These exercises engage multiple muscle groups simultaneously, promoting functional fitness and enhancing overall athletic performance. Kettlebells can be used in both individual workouts and group fitness classes.