Body Warmers with Adhesive - Heat Warmer Patch Disposable Air Activated Hot Warmers - Up to 12 Hours of Heat - WarmSpark (40 Packs)

【Heat duration】Up to 12 hours lasting and natural deep heat with an average temperature of 131°F. Heat pad dimensions: 5 x 3.75 inches, 【Comfort】The heat pad can be used flexibly, for example, on the back, neck, shoulders, stomach, arms or legs, 【Natural material】The mixture of activated carbon and iron powder contained in the heat pads heats up by itself when it comes into contact with oxygen, 【Easily use】 Open the packaging and the body warmers will heat up by themselves after a few minutes. Peel the protective film from the back and apply to the bottom layer of clothing, 【When to use】The heat pad is ideal for all occasions. Whether outdoors or simply at home