You've given gifts that look good, taste good and smell good; now try one that feels wonderful. This thoughtful Heart Warmer is as warm as the feelings you want to express. When the recipient snaps the thin metal disk inside the gel-filled heart, the friction sets off a chemical reaction that turns the pliable gel into a solid warm heart. This Heart Warmer will stay warm for about an hour. After it cools, boil the Heart Warmer in water to return it to its original pliable state. You can then reuse it again and again! Not designed for microwave use. Each sold separately. Comes with 1 Heart Warmer only.