Principle Electric Spinal Chiropractor Massager can not only restore the curvature of the body, but also use its own gravity to open the intervertebral space and make the intervertebral disc protrusion point retract, so as to eliminate the nerve compression. Correct the spine and relieve pain. Product Parameters Product Name: spinal correction gun Model: HL.3500 Adjustable Force: 75N, 180N, 300N Color: white Voltage: 110V-220V Frequency: 50 hz-60 Hz Gear: 3rd gear Maximum force: 350N Maximum power: 43W Number of working heads: 4 Product size: Approx. 20 * 13cm / 7.9 * 5.1inch NOT:There will be errors in manual measurement, only for reference, the actual object shall prevail Four different types of gun heads Meet all kinds of body massage needs A prefix It is suitable for correction of head, pain points, joints and acupoints T-shaped head It is suitable for scoliosis correction Small U-shaped head It is suitable for cervical spine balance correction Large U-shaped head It is suitable for the balance correction of thoracic vertebrae, sacral vertebrae, caudal vertebrae and lumbar vertebrae Product features 1. 3 gears, maximum strength 350n 2. Double heat dissipation design and anti-skid silicone handle are adopted 3.Cervical vertebra soothes and relieves pressure (1) Shoulder and neck relief (2) Channel dredging (3) Correct the spine (4) Muscle relaxation Packing list Package Include: -1 x Chiropractic Activator -1 x Single Stylus -1 x T-shape Stylus -2 x U-shape Stylus -1 x User Manual with a CD disk Note: -1. Do not use the high level for treating cervical vertebra. -2. Dear customer, Please rest assured to buy without worrying about the plug adaption. We will provide an adapter for you according to different country standard and ensure its normal use. -3.Keep the machine away from water. -4.It's suggested to cool the machine after continuous use for 15-20 mins.