Feature: 1. After fixing the traction belt on the waist and chest, pull the traction handle to drive the traction 2. Movable, inflatable headrest, the headrest is made of thick plastic, can be inflated and deflated, easy to store 3. Durable nylon buckle, you can adjust the size at will, the waist fixing belt and the chest fixing belt are made of quilted breathable material, you can adjust the size at will Specification: Name: cervical and lumbar traction device(black) Material: iron pipe Traction mode: hand-cranked Traction site: lumbar spine Traction strength: 0-800N is about 81. 63kg Traction stroke: 0-220mm Traction time: 20-30 minutes each time, once a day Size: 94CM 75CM 7.5CM Packing volume: 51 X12X19 cm Weight: about 5 kg Product advantages: small, beautiful, easy to fold, portable Occasions of use: home, office, clinic, etc. Packing list: cervical and lumbar traction device(complete set)×1?Easy to use?: Small size, light weight, easy to operate. Convenient for patients to do the lumbar traction at home. And then rest in bed for 30-60 minutes after traction, to ensure the effect and eliminate acid and discomfort of the neck waist. ?Traction time?: 20-30 minutes each time. No more than 2 times a day to ensure the effect, eliminating acid and discomfort in the neck and waist. ?Working principle?: Uses the rack and pinion structure, the use of human muscle elasticity generated by the force, to achieve the role of traction therapy to facilitate patients in the family, office, and other occasions, self-traction therapy. ?The mainly use of the lumbar stretcher? : Straighten and bend the deformed spine, relieve tight nerves and help relieve neck, shoulder, waist and leg joint pain. Longitudinal stretching of bones, improve cervical spondylosis, back pain, lumbar disc herniation, sciatica and other diseases. ?Adjustable traction?: Lumbar Traction Device for Bed, Clear marking height adjustment setting, this unit traction stroke is 0-220mm. Maximum traction: Traction strength, 0-800N is about 81. 63kg. Please ensure that the traction can withstand, do not excessive traction, otherwise it will have adverse consequences.