I am selling this because it did not fit the size of my desk. I used it for about a week, but it is as clean as new. [Product Description] This wool desk mat solves problems such as discoloration from sunlight, loss of shape, and pilling from friction that occur when using 100% natural materials. This is achieved by a unique blend with a minimal amount of polyester. Wool is highly water-resistant and repels water well. It is designed for comfortable use with optical mice.