Heat Time : 10 hours of continuous heat with an average temperature of 39C. Place them in your gloves, pocket for Instantly soothes warms the whole day. Natural Ingredients : The Hand warmers consist of iron powder, water, salt, activated carbon and vermiculite.Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin.Heat warmers are the perfect product for warm Hand for children, women. To Activate : Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes for best result, place the warmer in pocket or gloves. dispose with regular garbage after use. The ingredients will not harm to the environment. Multipurpose Warmers : Feet warmers are ideal for outdoor activities, winter sports of all kinds, winter walks as well as visits to the stadium and the Christmas market. Unopened, keepable for several years. Product description Disposable Hand Warmers The all-natural disposable hand warmers. Used by athletes, sportsmen, skiers, construction workers and everyone wanting to stay warm during outdoor activities. FEATURES: Quantity: 10/20 Individual Hand Warmers Duration OF Heat: Up to 10 hours of heat. Activation Time: 15-30 minutes. Average Temperature: 135 degrees Fahrenheit (39 degrees Celsius). Max Temperature: 158 degrees Fahrenheit (55 degrees Celsius). Ingredients: Iron Powder, Water, Salt, Activated Charcoal, and Wood Fiber. Product size: 10*13CM Product weight: 610g EASY TO USE Activating the heat packets is quick and easy Simply remove the warmer from the outer package and shake it to activate. The packet will heat up. If heat reduces simply expose it to air and shake again. For maximum efficiency place warmer in pocket or gloves. After use just toss it in the regular garbage