This Mouse skin is a wear-resistant, form-fitting thin film that protects the Magic Mouse from everyday wear and tear, it also reduce finger gliding friction for easier maneuverability without loss of sensitivity. It can be installed in seconds and will not leave any residue when removed. Cosmos® is a registered trademark USPTO serial: 85-390,937 protected by US Trademark Law, all products by Cosmos® are exclusively distributed by Galaxy Tech & Leisure.