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. Adjust the bottom and select the function head according to your needs. 3. Speed adjustment: Screw down the previous section to increase the strength, and screw it up to decrease the strength. 4. Place the handle of the chiropractic adjustment tool on the palm of your hand. Place the rubber tip on the body part to be hit and apply downward force. Pull the black part of the chiropractic adjustment tool to the palm of your hand, and then pull it back and forth. 5. When using high frequency frequently, please add lubricating oil appropriately. Specification: Item Type: Manual Chiropractic Tool Material: Stainless steel 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