Kettlebell training is a form of fitness activity that uses a cast-iron weight with a handle, known as a kettlebell, to perform dynamic exercises. These exercises typically involve swinging, lifting, and pressing movements that engage multiple muscle groups, improving strength, endurance, balance, and cardiovascular fitness. Popular kettlebell exercises include swings, snatches, and Turkish get-ups. It's a versatile workout suitable for all fitness levels, promoting both muscle building and fat loss.