Feature:1. The whole body adopts 304 stainless steel material, resistance.2. Exquisite workmanship, precise and durability, made of stainless steel material.3. Heat resistance, low temperature strength, good mechanical properties.4. Can change the head, multi‑purpose, can meet the needs of different people.5. 50N/100N/150N/200N/250N/300N 6 Gears of the strength, effective massage effect.Specification:Condition: 100% Brand NewItem Type: Spine Chiropractic InstrumentMaterial: Stainless Steel Optional Color: Black, Gold 6 Strength: 50N·100N·150N·200N·250N·300NFunction: Body massage: provide stable and powerful strength, more effective, more comfortable massage, suitable for scoliosis, thoracic vertebra and spine pain, can be used for joint relief, cervical vertebra adjustment, thoracic vertebra massage, cervical vertebra massage, whole body massage healthy carePhysical pressure massage principle: imitate the hand massage, adjust the bones, straighten the spine, immediately dredge upright, get rid of pain, make people refreshed and energetic.Contact with the skin below 2.3cm, effectively adjust the bones, massage once, make the relaxation time longer.Will provide stability and strong power, more effective, more comfortableInstructions for use:1. When using, do not hit the air, and the rubber head must be strong.2. Adjust the bottom according to the use needs3. Three-head calibration head, install and replace the workpiece head as requiredOperation instructions:1. Place the handle of the calibration head on the palms of your hand. Place the rubber head on the part to be punched and apply force downward.Pull the Black portion of the position into t