Lumbar tractor can effectively relieve lumbar disc, strain of lumbar muscles, sciatica, bone hyperplasia, lumbar rigidity, lumbar hemp, rheumatic pain, such as the waist pain. Function characteristics: 1. The traction condition, reduces the prominence to the nerve root compression, stimulation, effectively relieve pain 2. The traction condition, the pull of the lumbar vertebra clearance is advantageous to the reduction in the formation of negative pressure space and reset 3. The traction condition, improvement is the damage of lumbar intervertebral disc stress rested contraindications 1. The lumbar destructive changes caused by tuberculosis or lung tumor were banned. 2. Patients with cervical stenosis and lumbar di ministry trauma is still in the patients with acute, severe osteoporosis with caution. 3. Pregnant women, children with caution. 4. Whether patients with other diseases is suitable for use, please follow the doctor's advice. 5. Within 3 months after spinal surgery, please don't use this product