Feature: 1. The built-in heating pad can provide fixed thermal traction for the neck and cervical spine. The hot compress can promote blood circulation, help improve the inflammation of the cervical spine, nerve roots, joint capsule, muscle and other tissues, and can prevent a variety of middle-aged and elderly diseases. 2. The ergonomic design can perfectly fit your neck curve to protect the neck and other sensitive areas from uncomfortable pressure and pressure, and can freely adjust the traction and fixing force to obtain better results. 3. The self-traction neck traction kit can provide strong and comfortable support and easy traction to disperse the pressure of muscles, nerve tissues and mild cervical fractures, relieve neck pain and numbness, cervical deformity pain, headache, dizziness, Stiff and tired neck, suitable for traction correction of cervical lordosis, straightening, anti-arch, cervical canal hyperplasia, stenosis pain, etc. Product name: neck traction device Material: PP + cotton fabric Color: gray and blue Heating temperature: 3 adjustable levels (level 1: 45ºC-level 2: 55ºC-level 3: 65ºC) Traction height: 5 adjustable heights Power supply: USB / DC 5V 2A Size: 25*19.5*22cm Product net weight: 700g Applicable scenarios: running sports, fitness equipment, health massage, fitness and body Product List: 1*Cervical vertebra traction device kit 1*Instruction