Solar Hand Warmer is a small package (pouch) of crystalline material that stores solar energy which can be used when required. The product generates heat up to 55 degrees for about 1 hour. Though this product is best suited for hand warming, it can also be used for warming legs, backbone and other parts of the body. Mountain dwellers, travellers and motorbike riders often encounter severe coldness during winter. The product is useful to overcome this problem.