1.Material Load CapacityThe outer ring of the yoga wheel is made of TPE which is characterized by high strength and high load capacity, while the inner ring is made of PP, which is lightweight and highly resilient and has a load capacity of up to 200 kg. Our roller wheels for back stretchers are also easy to transport and thus allow back exercises practically anywhere on the go. 2.5D floating point: Yoga wheel with 5D floating point design massage surface, vertical strength with muscles, pointbypoint massage to relax muscles, better effect. 3.Nonslip : The surface of the yoga wheel has nonslip s, does not slip off when using and is r. Well waterproof, can be washed directly, more convenient. 4.Improve Spinal CurvatureThis exercise reduces the pressure exerted on the spinal cord and nerve roots, helping to reduce bulges and pain in the back. Frequent use of the wheel can correct the curvature of the spine and improve posture to reduce stress and improve your quality of life.