Device Mount - X-Grip™ - Torque™ - 3/4" - 1" - Features a B-sized 1" rubber ball mounting base that accommodates handlebars 3/4" - 1" in diameter paired with the dynamic X-Grip® for phones - Sizing inserts included to provide a snug fit and offer additional protection for the rail - Low-profile mount utilizes nylon-insert locknuts to secure personal electronics and small accessories to prevent loosening in high-vibration environments - Included spring-loaded, X-Grip® cradle has a clean and clever four-leg design that provides great holding power without hiding your phone; X-Grip® cradle expands and contracts, allowing for a perfect custom fit - X-Grip® also includes a device tether recommended for outdoor applications - Cradle is compatible with handheld devices that will fit the following dimensions: minimum width of 1.875" with a minimum height of 4.25"; maximum width of 3.25" with a minimum height of 2.25"; depth of 0.875" - It is important to verify the dimensions of your handheld device with a case/sleeve/skin when determining the overall size.