Product description Size: M, L, XL Color: black and red Material: elastic mesh Package content: 1 * heating waist protector 1. Back pain relief The lumbar support belt helps relieve back pain caused by sciatica, scoliosis, herniated disc, degenerative disc disease, sprains, osteoporosis, and loose ligaments. Suitable for use during sports, heavy work, and daily activities. 2. Arc-shaped aluminum strip for lasting support The back of the lumbar belt features curved aluminum strips designed to fit the natural shape of the back. Provides firm lower back support, helps maintain proper posture, and stabilizes the spine. 3. 2 detachable automatic heating pads No charging required. Automatically generates heat upon contact with skin. Utilizes far infrared technology that interacts with body moisture to produce a warming effect. 4. Individual adjustability Adjustable design allows for a customized fit based on waist circumference. Additional outer strap enables personalized compression and support levels. 5. Special breathable fabric Made with breathable, high-elastic fabric for comfort during extended wear. One-piece construction with durable hook-and-loop closure provides consistent compression and support to the lower back. Helps keep the back aligned to reduce discomfort.