Quantity: 14pcs, Size: 7*8.3cm Heating Temperature: 55C Shelf life3 years Hours8-10hours ApplicationBody Ingredientsiron power, salt, activated carbon, etc. Specifications: *Essential for keeping warm in winter *The disposable hand warmer provides daily warmth. It is the ideal equipment when the temperature gets cold. It is designed for your hands, feet and body. *Odorless, disposable, do not apply directly to the skin. *When to use: Jockey clubs, outdoor sports activities, hunting and fishing, camping and hiking, yard work, jogging or walking with pets. *Convenient, safe, practical and portable. *Tips 1Please do not directly attached to the skin, products should affixed to the outside of socks. 2Please do not use at bedtime. 3Please avoid using for a long time in the same place. 4Children under (6 years old) and the disabled or sensitive skin should use more attention in the low-temperature burns happen. 5Pregnant women and young children are forbidden to use this product. Package Included: 14pcs Disposable Foot Warmer