Feature:1. Cervical Spine Massage: Applicable for scoliosis, thoracic and spine pain, can be used for joint relief, cervical spine adjustment and massage, thoracic spine massage, body massage and health care.2. Principle Of Physical Pressure Massage: Imitate human hand massage, adjust bones, straighten the spine, immediately dredge and upright, get rid of pain, and make people refreshed and energetic.3. Replaceable 4 Head: Equipped with 4 function head, easy to replace and use. 6 gears of strength are adjustable, you can regulate it according to needs.4. Simple Operation: Suitable for everyone. 15 minutes a day, can reduce the pressure on the neck. The handle of this massager is easy to pull up and can be operated by girls.5. Stainless Steel Material: Manual chiropractic tool is made of stainless steel, which has corrosion resistance, heat resistance, low temperature strength and good mechanical properties.How to Use:1. When in use, it is forbidden to hit the air, and there must be point of force on the rubber head.2. According to the needs of use, adjust the bottom and select the function head.3. Speed regulation: The number on the chiropractic adjustment tool represents the gear of strength. Twist the chiropractic adjustment tool to the position indicated by the white dot, which is the adjusted gear.4. Place the hand