Description Color: As shown Features 1. Self-heating waist protector design provides continuous heating for over 12 hours without an external power source, allowing you to enjoy warm compress care anytime, anywhere. 2. Composite thermal insulation material conforms to the waist curve, effectively locking in body heat, providing warmth and support while providing warmth and support. 3. Far-infrared heating fibers release heat deep into the muscle layer, relieving lumbar muscle strain, menstrual discomfort, and chronic back pain. 4. No electromagnetic radiation or open flames, safe and environmentally friendly, suitable for use by the elderly, office workers, and postpartum women. Package Includes: Package Contains: 1. Manual measurement allows for 2-5 grams of discrepancy. Please note that substitutions may occur. 2. Due to monitor differences, images may not reflect the actual product color. Thank you very much! 3. SKU color refers to the product packaging color. Package Contains: 1 * Self-heating waist protector