Save space by selecting the desired weight with the rotary knob. With the Kettlebell you combine cardio and strength in a fast, effective workout and helps you build muscles, burn fat and strengthen confidence. Change your resistance automatically from 3.5 to 18 kg with a rotary knob. Adjust the settings in small steps to gradually increase your strength. Space-saving - replaces up to 6 Kettlebells. The wide weight range offers a variety of training options, including swings, rows, knee bends and turns. Ergonomic handle