RAM Mounts V-Shape Base The Ram-B-108Bu mounts effortlessly and securely on bars ranging from 1 to 2.1 in diameter, featuring a 1 rubber ball attached at a right angle to a v-shaped base. The mounting process involves positioning the saddle-shaped V plate on the bar, wrapping the metal clamp strap around both the rail and the plate, and tightening the screw knob on the strap with a screwdriver to ensure a secure grip. Includes: (1) 6 long metal strap (1) 8 long metal strap (1) 5.5 rubber strip that supports the metal straps to avoiding scratching or marking of the bar Material: Powder coated marine grade aluminum Ball Size: 1 Rubber Ball B Size