CoverON(&trade;) Silicone Gel Skin PINK Sleeve Rubber Soft Cover Case for NOKIA 900 LUMIA (T-MOBILE) [WCA115] Provides your Nokia Lumia 900 the maximum protection against scratches and scuffs. Made with grade A silica gel, this case is not only durable and long lasting, but also equips the Nokia Lumia 900 with a soft and comfortable surface. Pre-cut openings allows full access to all features. It is user-friendly, and super easy to install.