Kettlebells are ultra-versatile weights that will allow you work muscles all over your body. The problem is, you’ll need kettlebells of different weight to work different muscle groups, and a full set of kettlebells takes up a lot of space. With the GoZone adjustable kettlebell, you can dial in the right weight from 5lb, all the way up to 40lb. Perform a set of Russian twists, then up the weight for power squats. Increase the challenge as you build muscle, or lighten the load and focus on your form. Adjustable free weights are perfect for beginners, intermediate athletes, and experienced weightlifters.