MAXSTRENGTH ® Exercise Wheel is perfect for strengthening the muscles of the lower back and is very easy to use. Weights is 0.5kg (1.1lbs) and helps to significantly improve breathing thanks to building strong abdominal muscles. It is designed to tone arms, thighs and to tone the core muscles to decrease the risk of injury. This is ideal for burning excess calories. Comes in box with pictures printed how to use.