CoverON(&trade;) Soft Silicone WHITE Skin Cover Case for SAMSUNG M830 GALAXY RUSH BOOST MOBILE [WCB993] Provides your Samsung M830 Galaxy Rush 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 Samsung M830 Galaxy Rush with a soft and comfortable surface. Pre-cut openings allows full access to all features. It is user-friendly, and super easy to install.