Waterproof Care Sheet Series Fitted Sheet Type Color: White. Size: Single. Purchased on Rakuten, but I'm selling it as I won't be using it. Will ship with simple packaging. Material: Surface: 100% Polyester Back: Polyurethane Features: - Anti-slip rubber bands (Fits mattresses up to 18cm thick) - Waterproof, laminated back - Please use it under your regular cover. - This product is not disposable. - May be punctured by pet claws. In such cases, place this waterproof sheet under a thick sheet or pad. Cannot be used with electric blankets. - For bathroom drying, use at 60°C or lower. - When using a dryer, place it in a fine-mesh net and use at 60°C or lower. Gas dryers may exceed 60°C. In that case, it cannot be used. For longer life, it is recommended to dry it in the shade with the waterproof side facing inward.