specification: Item Type: Wrist Warmer_x000D_Material: OK Cloth, Carbon Fiber, Aluminum Strip_x000D_Size: Approx. 33x21x19cm/ 13x8.27x7.48in (manual measurement has an error of 1-3cm)_x000D_Features: _x000D_Carbon fiber heats up quickly, bends continuously, consumes little energy, and is safe and convenient_x000D_Hot Compress Effect:_x000D__x000D_1. Hot compress is aimed at wrist discomfort caused by cold, strain, and sprain, to unblock the painful tissue and relieve soreness, stiffness and discomfort;_x000D_2. Improve blood circulation temperature to reach deep skin, release far-infrared light waves to relieve soreness. Features: 1Pain Relief: The tendon sheath is located at the root of the thumb and is a synovial sheath that protects the tendon. Fixing the thumb to limit friction between the tendon and tendon sheath can relieve pain. 2Pocket Design: A wormwood bag can be placed inside the wrist brace, combined with electric heating wrist moxibustion physiotherapy, to protect the health of the wrist. 3Fast Heat Conduction: The carbon fiber yarn with thermal conductivity can quickly transfer heat energy to the inside of the wrist, and the acupuncture points around the wrist can be covered for physical therapy. 4Thumb Support: The aluminum strip can fix the thumb well, prevent the problem from being aggravated by friction with the tendon sheath, and at the same time adjust the curvature of the thumb according to your own situation. 5Hot Compress: Aimed at wrist discomfort caused by cold, strain, and sprain, to unblock the painful tissue and relieve soreness, stiffness and discomfort; Improve blood circulation temperature to reach deep skin, release far?infrared light waves to relieve soreness. PackageList: 1 x Heated Brace 1 x USB Line