1PC Self Heating Support Knee Pad Knee Brace Warm for Arthritis Joint Pain Relief Injury Recovery Belt Knee Massager Leg Warmer Product properties: Main material: Spandex Applicable population: Adults Heating time: 16 hours and above Product material: bamboo charcoal fiber Product gross weight: 100 (g) Product size: M L XL Product features: 1. Fabric material: the product is made of soft and comfortable bamboo carbon fiber, which is strong and durable, conforms to the streamline design of the knee, and is comfortable to wear; 2. Mineral physiotherapy knee pad: the product uses thermal printing technology to heat print mineral to the inside of the knee pad, so that the knee pad has both physiotherapy functions; 3. Comfortable and elastic: the product is elastic and can stretch freely without tension; 4. Applicable crowd: the product is suitable for adults with joint pain, rheumatic pain and low back and leg pain; 5. Applicable size: 40-105kg people can wear it, and the length of knee pad is about 28cm! Product list: kneepad * 1