Self-heating waist protection office magnet elastic waist protection belt heating, warm and breathable waist protection Features: Self-heating moxibustion, magnet, warm and comfortable, fit waistIt is suitable for relieving lumbar spine fatigue, lumbar spine stiffness, lumbar spine stiffness, etc. caused by facing the computer for a long, sitting in the office for a long, incorrect sleeping posture, etc. It can also be used for heating in winter.Protective equipment should be used close to the. Wearing it for a while will produce heat. When the heat is not enough, you can wipe the hot surface with a damp towelErgonomically designed to fit the waist for a comfortable fitWarm fabric, insulates cold and humidity, locks in heat, protects waist from cold, warm and comfortable!Product Description: Size11.5cmx1.9cm Package includes:1x Self-heating waist support