The comfortable touch cover has a pocket and warms the cold toes of yours. Warmth will last aproximatelly eight hours. Can be used repeatedly. The cover are able to be cleaned so you can use it cleanly. How to use: The body is a double bag. Use the outer bag in a microwave oven without breaking. Wipe off of any dirt in the microwave oven just before usage. If it's filthy, the bag might melt and tear. Add the main body on the stove as well as heat it. Put the nonwoven fabric side down. Be sure to heat with the microwave function, not with the oven feature or steam function. Don't use a commercial microwave oven. Can be used in a microwave oven without having a turntable. Add the main body in the specific cover, then put it in the futon. When you want to warm the toes of yours, put them in the cover pocket.