Product Description Mittens are waterproof, durable everyday gloves with the added benefit of having battery heat when it gets extra cold. The new design gloves have snow cuffs to seal in the warmth while keeping the cold out. On those extra cold days or to take the chill off, just turn on the heat by inserting in a "D? size alkaline battery(NotIncluded)which will last 4-6 hours if used continuously, longer if used intermittently. Safe, comfortable, perfect for all cold weather activities. These products are not designed to get extremely hot! They are designed to keep the hand warm thus making it more comfortable to be out in cold weather. The heating unit in the palm area is completely safe and warms the entire hand and fingers. IMPORTANT: Place you hands on a flat surface and measure the circumferance of you knuckles excluding the thumb. Then use the product table toorder the correct size. See picture
