Provides alternate solution to Keyboard Trays. Double socket arm, has a socket at both ends that accommodates 1.5" ball bases (RAM C size). 3 inch length. A single spring inside the arm opens the end sockets, allowing you to pivot the ball and socket connection. Connects RAM Mount base for iKey Keyboards (RAM-246U) to RAM Ball Mount for iKey Keyboards (RAM-202U). Uses RAM Mount P/N RAM-201U.