Use for squats, throws, cleans, jerks, snatches and rotational swings. The SPRI Kettlebells have handles designed for comfort and fully vinyl coated iron bells to help protect floors. Ideal tool for both personal and group training. Weights are built to a professional grade quality and designed for commercial gyms and clubs to be used 100 times a day versus 100 times a year in a home gym. Available in 5, 8, 10, 12, 15, 18, 20, 25, 30, 35, 40, 45, 50lbs.