Hothands warmers are single use, air-activated heat packs that provide warmth and are ideal for keeping your toes warm when the temperature gets cold.Ultra-thin and ready to use (just shake to activate), hothands provide up to 8 hours of heat for the toe area.Features ready to use, odorless fast heat; disposable; tsa approved and 8 hours of heat.Heating Area: ToesRun Time: 8 hrsFunction: Heat