Features:29 H-Shaped air columns,multi-directional support for sleeping room to open the lumbar intervertebral space,strong support for upper body weight,relieve lumbar pressure.PU material, Comfortable, sweat-absorbent and breathable,reducing allergic reactions in sensitive skin.Explosion-proof air pump, The design of the new air pump is light and convenient,It is easy to grasp the strength by hand,you don't have to worry about the air column bursting due to excessive inflation.Specifications:Product name: Lumbar traction beltProduct material: PU, cottonInflatable inner layer: TPUProduct gross weight: 825gPacking size: 21*18*7cmProduct length: 115cmProduct width: 13cm (before inflation), 20cm (after inflation)Package Included:1 x Traction Belt1 x Hand Air Pump1 x Extend Belt1 x Use ManualEnjoy Anywhere: Can be used while resting, relaxing, walking, sitting, lying down, gardening, golfing, working, driving, etc, light and comfortable. Material: High quality material, fine processing. Sturdy, durable and lightweight. Extension Belt: Our waist support belt comes with an extension belt that can be flexibly adjusted according to different individual needs. Spinal Air Traction Waist Belt: Traction can promote blood circulation in waist, relieve pains caused by lumbar muscle and rheumatism, enhance stamina and channel merdians. Air Traction Pillars: There are several air traction pillars on the back, designed with anti-C shape, can do traction strongly and protect the waist with larger scope.