Stm Dux Shell Ms Surface Pro STM-222-261L-01, Black, Protective cover, Strong and flexible bumper makes device installation/removal easy with no tools, Official "Designed for Microsoft Surface" certified, Unobstructed access to all ports and buttons, Portrait/horizontal viewing option with maximum stability, Polycarbonate and Thermoplastic polyurethane. The Dux Shell is a sleek and rugged case designed to protect your Microsoft Surface. Our unique, transparent back panel allows the pristine beauty of your device to shine through.