Take your mobile entertainment on the road with the new RAM Torque handlebar and rail mounting base. Weve paired a B-size 1 rubber ball base that accommodates bars 3/8 5/8 in diameter with a B-size standard length arm the dynamic X-Grip for 7-8 tablets. Sizing inserts are included to provide a snug fit and offer additional protection for the rail. The mount utilizes nylon-insert lock nuts to prevent loosening in high vibration environments. This low-profile mount is the perfect way to secure your personal electronics and small accessories in any high-vibration environment. The spring loaded X-Grip cradle expands and contracts, allowing for a perfect custom fit of your tablet. Included are extra easy access grip knobs, located on the back of the cradle for quick release of your tablet. The X-Grip includes a device tether recommended for outdoor applications. The cradle is compatible with handheld devices that will fit the dimensions listed below. It is important to verify the dimensions of your handheld device with a case/sleeve/skin when determining the overall size.