1、Nice Thermal Performance: Graphene has nice thermal performance, rapid heating after startup, 3‑5 seconds of temperature directly touch the skin. 2、Unique Structure: The intelligent temperature sensing system maintains a constant temperature state, and the unique structure makes the heating more uniform and stimulates every cell. 3、Dispel the Cold: Care for the knee, nano heating soft film covers a large area, deep penetration into the deep, care for the knee. 4、3 Speed One Button Adjustment: 45, 55, 65℃ fast heating, care for your legs, bring warmth and care for your legs. 5、Beautiful Gift Set: This heated knee brace is the perfect birthday, Thanksgiving, Christmas gift for mom, dad, man, woman, parent or friend. Show appreciation and care for your loved one. Item Type: Heated Knee Pads Weight: 253g/8.9oz Material: Graphene, PU, polyester fiber Size: free size 1 x Heated Knee Pads 1 x Extension Cable 1 x Instructions