STM Dux Shell STM Goods Dux Shell for Surface Pro 7 also fits Pro 4 5 6 STM222260L01 stm dux shell 202412 BigGo STM Dux Shell STM 222 338MZ 01 Anti Shock Ruggedised Case for Surface STM Goods Dux Shell for Microsoft Surface Go Go 2 Go 3 STM 222 194J. The Dux Shell is a sleek and rugged case designed to fit and protect the Surface Pro 9, complement the Type Cover and Surface Pen or Classroom Pen 2. Our 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. Key Features Military spec protectionTested to meet or exceed U. S. Dept. of Defense Standard 810H protocols (26 drops from 4 feet) Infinity Hinge Accommodates a full 180 degree range of angles for typing, drawing, and viewing plus a portrait horizontal viewing option with maximum stability Optional Pen LoopIf youre using a Surface Pen or Classroom Pen 2, attach the Pen Loop using the instructions provided Type Cover Compatibility Works with all Type Cover available for this device Transparent case Customise your device with your favourite images or allow your Surface Pro to proudly shine through Design complements device Crafted to deliver unobstructed access to all ports and buttons, and provide seamless Type Cover compatibility Ventilated design Allows the Surface Pro to stay cool Simple installation Strong and flexible bumper makes it easy to insert and remove your Surface Pro 9 *Device not included