1The whole is made of 304 stainless steel, which is not rusty and corrosion resistant. 2Heat resistance, low temperature strength, good mechanical properties. 350N / 100N / 150N / 200N / 250N / 300N 6 levels of intensity, effective massage effect. 4Lightweight, safe, durable, portable, sturdy household massager, suitable for everyone. 515 minutes a can reduce the pressure on the neck and is more effective than chiropractic. Condition:100% Item Type:ChiropracticAdjusting Tool Material: Stainless Steel The six strengths are: 50N100N150N200N250N300N Functions: Body Massage: Provide stable and powerful strength, more effective and comfortable massage, suitable for scoliosis, thoracic and spine aches, can be used for joint relief, cervical spine adjustment, thoracic spine massage, cervical spine massage, full body massage health care The Principle of Physical Pressure Massage: Imitating human hand massage, adjust the bones, straighten the spine, straighten up immediately, get rid of pain, and make people refreshed and energetic. It can be in contact with the skin under 2.3cm to effectively adjust the bones and massage once to make the relaxation time longer. Will provide stable and powerful strength, more effective and more comfortable Instructions for Use: 1. When using, it is forbidden to hit the air, and there must be a strong point on the rubber head. 2. Adjust the bottom according to the needs of use Steps: 1. Put the handle of the bone setting gun on your palm. Place the rubber head on the part to be hit and apply downward force. Pull the black part of the position onto the palm, and then pull back and forth. 2. When using high frequency frequently, please add lubricating oil appropriately. 1 x ChiropracticAdjusting Tool