Please be sure to read my profile. Ice Non pillow cover handmade. Uses a cooling/insulating aluminum sheet. ✨ Although listed as an Ice Non pillow cover, it's a cooling/insulating aluminum sheet, so please use it for various purposes. The opening of the bag does not have zippers, buttons, etc. to prevent injury, so please fold it over to use. Fabric: Cotton Oxford Size: Length 24cm, Width 37cm *There may be slight variations in length and width. Please purchase only if you understand the nature of handmade items and the fabric. ⚠️ There may be slight differences in color between the image and the actual product. ⚠️ The pattern may vary depending on the cutting location, so it may differ from the image. Depending on the fabric, there may be black specks, which are called "kasu nokoshi" (fiber residue), a natural finish that leaves fiber residue. This is not a stain, so please use it with confidence. In production, we would normally pre-wash the fabric, but for hygiene reasons, we have not pre-washed it, so it may shrink slightly after washing. ⚠️ Items for sale may be deleted suddenly.