I am selling this because I accidentally bought the wrong size. It is unused. The box has wrinkles because it has been opened once. <Size> 300*500*28 <Product Description> This is a bath mat made of diatomaceous earth, a natural material with high water absorbency. It quickly absorbs moisture from the soles of your feet and dries naturally over time. ◯ Please use with the logo side facing down. ◯ To maintain the properties of diatomaceous earth, it has not been kiln-fired. Please do not place it on long-pile carpets or mats, or in places with steps, as it may break.