Polyester box sheet for a single size bed. - Size: Single 100 x 200cm 【High-Quality Material】 Made of durable material, it can withstand long-term use. 【Comfortable Fit】 Fits mattresses up to 30cm, providing a secure fit. Designed to improve sleeping comfort. 【Simple and Stylish】 The white color easily matches any interior and gives a simple and sophisticated impression. The previous seller found the size didn't fit, so it's a new, unused item. However, upon inspection, there was some minor dust, so I'm listing it as is. Immediate purchase is OK. Please refrain from purchasing if you are concerned about minor details.