Specification: Item Type: Chiropractic Adjustment Tool Material: stainless steel Strength setting: 10-300N Size: Approx. 15 x 8.5 cm / 5.9 x 3.3 inches Usage: 1. While in use, it is forbidden to hit the air and there must be a force point on the rubber head. 2. Speed adjustment: screw the previous section down to increase the strength and screw it up to decrease the strength. 3. Place the handle of the chiropractic adjustment tool on the palm of your hand. Place the rubber tip on the part of the body to be hit and apply a downward force. Pull the black part of the chiropractic adjustment tool into your palm, then pull it back and forth. 4. If you use high frequency frequently, please add lubricating oil accordingly. Function: 1. Body Massage: Provide stable and strong force, more effective and comfortable massage. 2. It is suitable for scoliosis, chest and spine pain, and can be used for joint relief, cervical spine adjustment, thoracic spine massage, cervical spine massage and health care body massage. 3. The principle of body compression massage: imitate human hand massage, adjust the bones, straighten the spine, lift up immediately, get rid of pain, and make people refreshed and energetic. It can come in contact with the skin less than 2.3 cm for effective adjustment of the bones and massage once to increase relaxation time. Package list: 1 x Manual Chiropractic Tool 1 x storage box 1 x English manual 2 x rubber cover