Includes short length double socket arm and self leveling cup holder. Consists of hardware for mounting either brake/clutch reservoirs and rails that are 0.5" to 1.25" in diameter Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at both ends of the socket arm The integrated eyelet and hook provide an optional tethering function, securing any small or open container in any harsh environment Compatible with any cups, cans, bottles or mugs ranging from 2.5" to 3.5" diameter