• SAFE, NATURAL LONG-LASTING HEAT - Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. Made in the USA using domestic and imported materials. No shaking or kneading required
• TO ACTIVATE - Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage. Ingredients will not harm the environment.
• MULTIPURPOSE WARMERS - Single use air-activated heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold.

For extended use of hand warming heat packs, simply place the heat packs in an air-tight bag, suck out the air, and seal the bag. When your ready to use them again, take them out of the air-tight bag.