Large massaging bead waist, perfect fit body waist, giving people good support, can effectively relieve lower back fatigue and fatigue from long drives, this product is designed according to the principles of human Bioengineering, massaging beads part position fitting both in the largest waist, better reduce the human lumbar fatigue, premium cloth wrapped the framework, made of fine, easy to clean. Arc design concept, applicable to a wide scale, whether for home or car can use this product