RAM Torque 3/4″ – 1″ Diameter Handlebar/Rail Base with 1″ Ball, Medium Arm and Diamond Ball BaseTake your mobile entertainment on the road with the new RAM Torque handlebar and rail mounting base. Weve paired a B-sized 1″ ball base that accommodate bars 3/4″ to 1″ in diameter with a B-sized standard length arm and diamond base so that you can connect any of the RAM Mounts cradles or anything else with the AMPS hole pattern. Sizing inserts are included to provide a snug fit and offer additional protection for the rail. The mount utilizes nylon-insert locknuts 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.Mounting Base Dimensions:Accommodates rails 3/4″ to 1″ in diameterMaterial:Powder Coated Marine Grade AluminumBall Size:1″ Rubber Ball “B” Size Owner’s Manual (pdf)