Specification: Item Type: Electric Spine Chiropractor Material: stainless steel 1. Body massage: provide stable and strong force, more effective and pleasant massage, 2. Suitable for scoliosis, chest and spine pain, and can be used for joint relief, cervical spine adjustment, thoracic spine massage, cervical spine massage, body massage and health care 3. Principle of body compression massage: imitate human hand massage, adjust the bones, straighten the spine, dig upright immediately, get rid of pain, and make people refreshed and energetic. It may come in contact with the skin under 2.3 cm to effectively adjust the bones and massage once to extend the relaxation time. Provides stable and strong performance, more effective and comfortable Strength setting: 30N, 60N, 90N, 120N, 150N, 180N, 210N, 240N, 270N, 300N Usage: 1. When using, it is forbidden to hit the air, and the rubber head must be strong. 2. Speed: front part to screw on, force becomes large, screw upwards, force becomes small 3. Place the handle of the bone placement gun in the palm of your hand. Place the rubber head on the part of the body to be hit and apply a downward force. Pull the black part of the bone setter into your palm and pull it back and forth. 4. If you use high frequency frequently, please add lubricating oil accordingly. Package list: 1 x correction pistol for setting 1 x English manual 1 x storage bag