A great addition to any surface mounting application, the RAM® cable manager creates an integrated route for electrical wiring and cleanly covers installation holes. This cable manager is made of glass-filled nylon, which has the benefit of creating a barrier between the RAM® surface mount and the attachment area – minimizing vibration while reducing fiberglass and gel-coat damage. This item will work with any of the 2 5/8" round plates featuring the AMPS hole pattern. Hardware not included.