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 get injured. Other colors are available. Please check the second photo. If you have a preference, please comment with the color number before purchasing. I will create a dedicated page for you. If you purchase immediately without a preference, I will send you a random color. 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: Ordinary mail (free) 　*Delivery may take 3-7 days from dispatch due to postal delivery being closed on weekends and holidays. 【Options】 　Anonymous delivery: Yu-Yu Mercari delivery (+100 yen) 　Urgent delivery: Express or Letter Pack Light (+320 yen) *If you wish to use the above options, please comment before purchasing. ⚠︎Notes I 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.