HotHands Insole Foot Warmers are single use air-activated heat packs that provide everyday warmth and are ideal for keeping your feet warm when the temperature gets cold. These warmers provide safe, natural heat, so you can enjoy the great outdoors during those harsh winter months. The insole foot warmers are ultra-thin and measure the full length of an insole to keep your entire foot warm. Features:• Ultra thin• Ready to use• Air-activated• Safe, natural heat• Adhesive – It stays where you stick it!• Odorless• Each warmer provides up to 9 hours of heatHow to use:Simply open the package, peel away the paper backing, and stick the warmers to the bottom of your sock. See package for detailed instructions. When to use:HotHands warmers are great for any occasion where long-lasting heat is desired. • Outdoor sports• Hunting & Fishing• Tailgating at events• Working in the yard• Taking the pet for a walk• Shopping or commuting to workWHEN TO USE: Tailgating at Events, Outdoor Sporting Events, Hunting & Fishing, Camping & Hiking, Working in The Yard, Jogging or Taking Your Pet for A Walk. Convenient, Compact, Portable. 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. They’re available in several styles designed for your hands, feet, and body. 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. 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.Reusability: Single Use. Included Components: 16 pair insole foot warmers. Recommended Uses For Product: Camping. Power Source: Manual. Material: Iron. Color: Black. Brand: HotHands. Size: 16 Count. Date First Available: February 3, 2009. Best Sellers Rank: #8,319 in Sports & Outdoors. Customer Reviews: 4.7 out of 5 stars 6,085 ratings 4.7 out of 5 stars. : B001UQXAT6. Sport Type: ?Camping & Hiking. Size: ?16 Count. Included Components: ?16 pair insole foot warmers. Part Number: ?HFINSPDQ-AMZ. Manufacturer: ?Kobayashi. Number of Items: ?1. Suggested Users: ?Unisex-adult. Material: ?Iron. Color: ?Black. Model Name: ?HFINSPDQ. Warranty Description: ?Limited. Brand Name: ?HotHands. Item Weight: ?1.7 Pounds. Item Dimensions LxWxH: ?10.7 x 4.9 x 4.7 inches. Package Weight: ?0.94 Kilograms. Item Package Dimensions L x W x H: ?10.63 x 5 x 4.72 inches.