Features: Made of quality material, good corrosion resistance, heat resistance, low temperature strength and mechanic performance. Adjustable strength to choose, meeting different demands. High quality workmanship which can bear multiple tests, providing durable use. Mechanic therapy, easy treatment, time saving, energy saving. Can contact with skin under 2.3cm, effectively adjust bones, ease pains, massage one time for longer time relaxing. Stable and strong strength will be provided, more effective, more comfortable. Can stimulate nerve cell and the normal function of an organ resulting in rapid recovery the body function. Suitable for scoliosis, thoracic spondylosis, cervical spondylosis, body treatment. Specification: Material: Rubber, Metal Body Adjustable Force: 80-250N Color: As Pictures Show Item Size: Approx.15.2 * 7.4 * 1cm / 5.9 * 2.9 * 0.4in Item Type: Chiropractic Adjusting ToolInstructions for use: 1. When in use, empty hitting is prohibited, and there must be a stress point at the rubber head. 2. Adjust the intensity according to the needs of use 3. Operating instructions: Place the handle of the correction gun in the palm of the palm, and place the rubber head on the position to be hit. Push down and pull the black part of the position with your fingers back and forth toward the palm. For frequent high-frequency use, lubricating oil (vegetable oil) can also be appropriately added. Package Include: 1 * Chiropractic Corrector .