Features: 1.Developyour muscle strength. Can improve human static and dynamic strength. 2. Its main role is to develop human upper limb strength and abdominal muscle strength. 3.It plays an important role in developing balance and supporting capacity. It can improve the thick and elastic of muscles and improve its exercise capacity. 4.Enhance physical fitness and improve health. 5.It can regulate people's psychology, make people be energetic. Specifications: Product Name: Abdominal Wheel Load-bearing capacity: 150KG(max) Material: sponge, steel pipe Color: blue Notice: Due to the different monitor and light effect, the actual color maybe a slight different from the picture color. includes: 1 x Abdominal Wheel