Relieve the discomfort of varicose veins 7. Relieve the discomfort of restless legs syndrome 8. Promote blood circulation in the legs 10.Relieve pain, relax muscles, promote metabolism, wound healing. Power density value: 0 inch : >120mW / c? Box size: 29523048mm Package included: 1 SET Red Infrared Light Waist Foot Therapy Belt.