1Improves lumbar pain and lumbar muscle strain, soothes fatigue caused by frequent movements or long-term fixed posture. 2Improve blood circulation, enhance metabolism, and it has good effects of anti-inflammatory and analgesic. 3The ergonomic design, conforming the waist physiological curves arc, gives your waist a comfortable experience. 4It also has the physiotherapy effect of removing vascular stagnation and harmful substances in the body and promoting cell metabolism. 5Can be used in the office, at home, during exercise, at rest, easy to use.