RAM-B-149ZA-UN7-KT U-Bolt Handlebar Mount & X-Grip™ Smart Phone & Sat Nav Holder (sku 36481)The RAM B 149ZA UN7 KT consists of a zinc coated u bolt base, double socket arm and universal X Grip holder. Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at the both ends of the socket arm; this with a twist of the arm knob, allows you to move the X Grip mount to your optimum viewing position. We recommend the use of a fixed tether if the unit and device is to be used in an open cockpit