The Lava Pad is a revolutionary product that can be used to provide soothing warmth for cold hands or sore muscles.The Lava Pad is a plastic device filled with safe non toxic liquid. Simply snap the small metal disc inside which will cause the liquid to transform. The Lava pad will heat up automatically up to 130 degrees with no outside power source of any kind. Best of all Lava Pads can be used over and over again simply byboiling water for five to seven minutes untill the contents change back to liquid form. Safe No Electricity Convenient Portable and can be used anywhere Versatile and economical Can be used over and over again!!