Features： 1、Convenient Use: The manual massager is lightweight, safe, durable, portable, suitable for home massage and suitable for everyone. 2、Relieve Neck Stress: Using a manual massager for 15 minutes a day can reduce stress on your neck and is more effective than chiropractic. 3、Strong Strength: The handle of the spinal adjustment massage tool is easy to pull up, and girls can also operate it, but the strength is still very strong. 4、304 Stainless Steel: The manual chiropractic tool is made of 304 stainless steel, which has corrosion resistance, heat resistance, low temperature strength and good mechanical properties. 5、Replaceable Functional Head: The manual chiropractic tool has exquisite craftsmanship, and the functional head can be replaced, which can meet the needs of different people with multi purpose. Specification： Item Type: Manual Chiropractic Tool Material: Stainless steel Function: 1. Body massage: provide stable and powerful force, more effective and more comfortable massage, 2. It is suitable for scoliosis, thoracic spine and spine pain, can be used for joint relief, cervical spine adjustment, thoracic spine massage, cervical spine massage, whole body massage health care 3. Principle of physical pressure massage: imitating human hand massage, adjusting bones, straightening the spine, dredging upright immediately, getting rid of pain, making people refreshed and energetic. It can be in contact with the skin below 2.3cm, effectively adjust the bones, massage once, make the relaxation time longer. Will provide stable and powerful strength, more efficient and more comfortable Strength adjustment: 30N, 60N, 90N, 120N, 150N, 180N, 210N, 240N, 270N, 300N Adaptation symptoms: 1. Neck syndrome: headache, dizziness, insomnia, limited neck movement, neck pain, arm numbness, neck movement disorder. 2. Chest syndrome: back pain, shortness of breath, loss of appetite, gastrointestinal disturbances 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: Prevention of degenerative changes in traditional spine health. Package List： 1 x Manual Chiropractic Tool 1 x Cloth Box 1 x English Manual 2 x Rubber Cover 4 x Rubber Rings 4 x Function Head