Never hot or cold, sticky or 'icky', the MouseRug's surface is made of millions of individual soft nylon microfibers with air space between to provide the most beautiful and comfortable mousing surface on the planet. 25.5cm x 18cm. Though contemporary in its look and feel, this geometrically patterned rug is a replication of a design that originated in the northwest corner of Iran and was popular in Europe and America during the 19th century. Its subtle blues and purples, together with a wide-range of ivory and earth tones, impart an antique quality with a patina of time.