Hakugen Earth Range de Yutapon L Size x 2 Set with Washable Cover Ready to use immediately after heating in the microwave. A soft and comfortable gel-type foot warmer. The pleasant warmth thoroughly warms cold feet. The large L size (twice the size) warms a wide area inside the futon. Warmth lasts for approximately 7 hours. *This is a guideline when used inside a futon. *The duration may vary depending on room temperature and usage environment. Comes with a fluffy, washable cover. Reusable. Also for dogs and cats. Useful in cold cages. ・Main Specifications Contents: L size 1 piece x 2 sets Size when in use: 23 x 35cm Ingredients: Water, gelling agent, coloring agent Cover material: Polyester Type... Blanket/Sheet