Tigra MountCase iPhone 4/4S Waterproof Bike Mount Kit with RainGuard Ultra light (less than 2 ounces) and strong iPhone 4/4S daily case and bike mounting system. The included RainGuard protective cover will keep your phone 100% Rainproof and Dust & Dirt Free. Mounts in seconds with only a twist and click to any bike stem or handlebars in horizontal or vertical positions. Provide full access to iPhone touch screen, all buttons, sound controls, and ports. In-bracket safety lock makes it great for mounting to bikes, motorcycles, scooters, strollers, and more! Tested to withstand road vibrations on bumpy trails and at high speeds.