A box sheet with a soft texture that supports a comfortable sleep. Made of breathable polyester material, it can be used comfortably throughout the year, in spring, summer, autumn, and winter. With elastic all around, it fits snugly on the mattress! It can be washed in the washing machine, so you can always keep it clean. 【Size Details】 Double: Approximately 150 x 200 x 30cm The thickness of the mattress that can be accommodated is up to approximately 30cm. 【Color】 Dark Gray (Please check the actual product image) 【Notes】 ※ Because this is an imported product, there may be small scratches, fraying, slight distortions, or odors. Therefore, we are selling it at a low price. ※ We cannot accept returns or exchanges due to customer's convenience, such as a different image or incorrect size. Please feel free to comment if you have any concerns. ※ We have opened the product once for inspection. ※ Please note that the actual product may look slightly different in color depending on your monitor environment and lighting. ⚠ Although we inspect the products, if you receive a product with obvious defects or that hinders use, please contact us before leaving a review. We will handle returns and exchanges. Please note that we cannot offer refunds after the review is completed.