The RAM-B-174-AP10U consists of a double socket arm, hardware for mounting to both brake/clutch reservoirs and rails that are 0.5″ to 1.25″ in diameter, diamond adapter base and custom high strength composite cradle for the Apple iPod touch 4th generation. Designed into the mount is a 1″ diameter patented rubber ball and socket system with adjustment points at the base and cradle. With a twist of the arm knob, you can move the Apple iPod touch mount to your optimum viewing position.