Features 1??9 Gears: Electric spine chiropractor tool with 9 strength gears and 9 frequency gears for you to adjust according to your needs, which can provide stable and powerful force. 2??4 Massage Heads: Chiropractic adjusting instrument has 4 replaceable physiotherapy heads for you to choose, can be used to treat and massage your different body parts. 3??Promote Recovery: Electric chiropractic massager can provide comfortable massage to stimulate the normal function of nerve cells and organs, effectively recover your body function. 4??Multifunction: Electric spine massager adjusting corrector can be used for joint relief, cervical adjustment, thoracic disease, cervical spondylosis, body treatment, and so on. 5??Cooling Fan: Chiropractic adjusting massager built in a high frequency cooling fan to cool the machine, effectively extending the machine service life, which can be used for a long time. Specification Item Type: Electric Spine Chiropractor Material: ABS Strength Setting(P+, P-): "1"= 100N, "2" =200N, "3"= 300N, "4"=400N, "5"= 500N, "6"= 600N, "7"= 700N, "8"= 800N, "9"= 900N Frequency Setting (F+, F-): 1 to 9(slow to fast) Function: 1. Body massage: provide stable and powerful force, more effective and more comfortable massage. 2. It is suitable for scoliosis, thoracic and spine soreness, and can be used for joint relief, cervical spine adjustment, thoracic spine massage, cervical spine massage, and body massage for health care. 3. The principle of physical pressure massage: imitate human hand massage, adjust bones, straighten the spine, immediately dredge upright, get rid of pain, and make people refreshed and energetic. It can be in contact with the skin under 2.3cm to effectively adjust the bones and massage once to make the relaxation time longer. Adaptation Symptoms: 1. Neck syndrome: headache, dizziness, insomnia, restricted neck movement, neck pain, numbness in the arms, and neck movement disorders. 2. Chest syndrome: back pain, shortness of breath, loss of appetite, gastrointestinal disorders, 3. Lumbar syndrome: acute and chronic low back pain, lumbar disc herniation, numbness of legs and feet. 4. Pelvic syndrome: sacroiliac joint subluxation, sciatica, toes 5. Scoliosis: prevent traditional spinal health degenerative diseases. Package List 1 x Electric Spine Chiropractor 4 x Physical Therapy Heads 4 x Rubber Rings 2 x Rubber Covers 1 x English Instruction 1 x Storage Box