The incomparable feeling of a blanket fresh out of the drier has always been an incredibly pleasant but fleeting experience. With the all new HotBox, we are trying to bring this sensation and keep it alive for multiple hours. The HotBox is similar to a heated blanket, except it doesn't require an electricity source to stay warm. By placing the blanket into the drier, or in a hot place for a while, the small beads inside will retain the heat inside them for four hours.