Features 1. High Elasticity Soft - The soft self-adhesive belt with high elasticity that is easy to take on and off.Wear during everyday chores and activities, and intense sports or workouts, to protect your back and feel blessedly pain-free.It can relax muscles and reduces fatigue. have some effects on lose fat and keep slim in some way. 2. Effectively Relieve Body Pain - Adopting high technology nano material and self-heating stone, which will help to improve the blood circulation and promote metabolism. The front and back of the belt are embedded with magnets that produce energy in the form of a magnetic field, and tourmaline stones which generate heat when in contact with your skin.Help relieve pain associated with joint and back problems. 3. Premium Material - Made of high quality material, which is safe and comfortable to wear.High elastic fiber cloth, Adjustable Neoprene double pull braces.fine texture, soft handle.With dual adjustable straps and strong velcro grip, your brace stays securely in place as you do the most vigorous of activities. 4. Ergonomics Design - With ergonomics design to ease pressure on back and protect spine and stomach. Thanks to the additional elastic straps on both sides of the belt, you will be able to adjust the compression level to make sure the brace hugs your body perfectly and you feel comfortable. 5. Widely Application - Wear the brace over a thin tank top or undershirt instead of directly on your skin. Do not wear for longer than 2 hours at a time.Suitable for people whose waist need keeping warm/Athletes or people doing regular exercise/Student/drivers /office workers. Specifications Item Type: Tourmaline Self-heating Waist Belt Function: Improve blood circulation, promote metabolism, clear the meridians and enhance immunity Color: Black Size: S - approx.100cm - Waistline(60-80cm) M - approx.105cm - Waistline(80-90cm) L - approx.110cm - Waistline(90-100cm) XL - approx.115cm - Waistline(100-112cm) Package Include: 1 x Tourmaline Self-heating Waist Belt Notes: 1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object.