Fleece disposable heat pack cover. Prevents overheating. At my parents' house, we put it in the cat's futon on winter nights to keep it warm! It can also be used as a cold pack cover in the summer or when you're injured. Other colors are available. Please check the product list! Disposable heat packs are not included. Only the cover will be sent. Fabric material: Polyester Size: Fits regular-sized disposable heat packs. *Please note that there may be slight variations due to being handmade. [About Shipping] 　Standard shipping: Regular mail (free) 　*Delivery may take 3-7 days from dispatch as postal deliveries are closed on weekends and holidays. [Options] 　Anonymous shipping: Yu-Yu Mercari delivery (+100 yen) 　Urgent: Express delivery or Letter Pack Light (+320 yen) *If you wish to use the above options, please comment before purchasing. ⚠︎Notes We make them carefully, but they are handmade. The finish is not as perfect as a professional product. Please understand this beforehand. Please refrain from purchasing if you are looking for perfection. The color of the product may differ slightly from the photos depending on your device. Please understand that these are handmade items. Basically, returns and exchanges are not accepted.