Ordercode: 0021-7000a Hand functionality decreases when your hand gets cold. This is very unpleasant when you rely on your hand for your mobility. The Hand Heater gives you a solution for this. It can he placed very close to your hand and keep your hand warm so it increase the functionality of your hand. For wintertime we have Hand Heater Cones (for 1 or 2 hands) that capture the hot air. Tests tell us that people using the Hand Heater and the cones can drive more than 3 hours longer outside in cold environments.