The Dux Shell is a sleek and rugged case, certified by Microsoft as Designed For Surface (DFS) to fit and protect the Surface Pro 9 while complementing the Type Cover and Surface Pen or Classroom Pen 2. The unique, transparent back panel allows the pristine beauty of your device to shine through. Slim and lightweight, yet super protective, the Dux Shell has been tested to meet or exceed U.S. Department of Defense 810H drop tests standards. Device Compatibility: Microsoft Surface Pro 9 Color: Black Special Warranty: 3 Years. Smarter Features: Full 180-degree range of angles for typing, drawing, and viewing, Meets U.S. Dept. of Defense Standard 810H protocols, Optional pen loop with instructions provided, Portrait viewing option, Type Cover compatible, Simple installation, Transparent case. Quick Spec. and Tech: DIMENSIONS: 30 x 21.6 x 2 cm / 11.81 x 8.5 x .79 in, WEIGHT: .38 kg .84 lbs, MATERIALS: PC / TPU.