HOTHANDS Hand Warmers 10 Count Value Pack - HOTHANDS Hand Warmers 10 Count Value Pack Hothands Hand Warmers are rectangular shaped single-use air-activated heat packs that provide up to 10 hours of continuous warmth for the hands. Ready to use, just open package and you are ready to stay warm. Just anywhere you are cold, such as tailgating, outdoor sports, working in the yard, jogging or walking your dog.