Features: Adjustable fixed thermal traction, traction increase by 60%. Made of cotton fabric. It is comfortable and do not harm your neck and shoulders. It is can be detached to wash bu hands or wash machine. Protect sensitive anterior neck area from compression, adjust traction and fixation. It is used for cervical lordosis straightening, anti-arch and traction correction of cervical canal hyperplasia, stenosis and pain. Hot compress with heating pad can promote blood circulation, help cervical nerve root, joint capsule muscle and other tissue water and inflammation subside and prevent a variety of middle-aged and elderly diseases. Specifications: Material: Cotton Fibric + PP Color: Gray Item Weight: 346g / 12.2oz Package Size: 25 * 22 * 19.5cm / 9.8 * 8.7 * 7.7in Package Weight: 440g / 15.5oz Note: Plug is not included, you can use it by connecting the USB to a power bank or the plug of your phone. Package List: 1 * Neck Traction Device 1 * USB Cable 1 * Instruction