Suprfit Pro Competition Kettlebells are cast in one piece and made from high-quality steel instead of cast iron. The Suprfit Kettlebell Competition ball weights are perfect for an effective full-body workout. They can be used for snatching, clean and jerking, pressing, or simply as extra weight during mobility training. Whether you are a beginner or a professional, for commercial use in a gym or at home in your home gym, our weight balls are used by professional sports clubs, CrossFit boxes, and functional training gyms across Europe. The competition kettlebells withstand all weather conditions. They are made from high-quality steel in one piece and all have uniform dimensions and sizes. The flat bottom also ensures a stable stand.