RAM Large Cable Manager f/" Diameter Ball BasesThe RAM Cable Manager creates an integrated route for electrical wiring and cleanly covers installation holes. A great addition to any surface mounting application. The RAM 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. Compatible RAM Mounts:Compatible with all " diameter ball bases that contain a three hole, 120 degree hole :High Strength Composite and Glass Filled Nylon IMPORTANT:To prevent galling of threads during assembly, it is imperative that all threads are lubricated with oil prior to :The "U" in the part number reflects product packaged in poly bag. RAM ball base not included with purchase.