Specifications: Treatment as far as possible, relax your knee, slowly increase pressure. Self-heating pad designed for the knee. High elastic belt, good elastic, wear comfortable, paste and firm, changeless form. Can effectively improve blood circulation, promote metabolism, and clear the meridians, enhance immunity. Have anti-inflammatory and analgesic, swelling the role. Easy to use, discreet and can be used anywhere any time. Safe & comfortable to wear. Type: Knee Pads Color: Black Quantity: 1 Pair Gender: Unisex Style: Casual Material: Cloth Feature: Self-heating, Comfortable, Elastic Thickness: 3mm/0.12" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Pair of Knee Pads