Feature: 1. Adopts quality non-woven fabric, breathable, even heat dissipation, safe and healthy. 2. Keep warm and dispel coldness, improve cold hands and feet, practical for use. 3. Suitable for multiple body parts, which includes abdomen, legs, waist, etc. 4. Self-adhesive designs, can be easily stuck and peel off, bring you convenience. 5. The average temperature is 52℃, can heat for about 10 hours, especially suitable outdoor activities in winter. Specification: Condition: 100% Brand New Item Type: Warm Keeping Sticker Temperature: The average temperature is 52℃, and the maximum temperature is 65℃ Heating Time: About 10 hours Ingredients: Iron powder, carbon powder, water, vermiculite, absorbent resin, salt, etc Scope of Application: Cold-proof, outdoor activities warm keeping use Usage: Open the outer package, peel off the released paper, no need to rub, directly stick on the outer side of underwear, it can not be directly stuck on the skin. Size: Approx. 9.8 x 12.8cm / 3.9 x 5.0in. Package List: 20 x Warm Keeping Sticker Note: 1. Do not use at bedtime.2. When used in a bedding or in combination with a heating instrument, the temperature will rise and should not be used.3. Do not touch the skin directly.4. Children and person whose skin is not sensitive to temperature changes, please pay special attention when using.5. This product is for external use only.