A control consisting of a wire, wire rope, or a center load rail with ball bearings, within a flexible conduit. one end must have a threaded sleeve for mounting to a wall, bulkhead, or handle, or clevis. it is used to operate or control, either manually or mechanically a mechanical device. it may include such attaching devices as nut(s), washer(s), clevis, bracket(s), and/or the like. for items designed to transmit rotary motion, see shaft assembly, flexible.