Norsea -Stainless Steel Clam Shell Vent, Wire Cable Cover, Cap, Outlet, Clamshell -One Piece Structure And Streamlined Design For Boats, RVs and Outdoor Application -Pack of 2 PCS Splash proof for wire/cable holes, exhaust openings and vent holes on boats, RV, house and outdoor. Marine grade stainless steel with mirror polished, deburr the edges and holes for safety using. It's easy and quickly to install with three 3 x #6(M3.5) screws (not included). One piece structure and streamlined design with mirror surface which's both beautiful and durable. Please check the cable size you want to cover before order, we always guarantee your satisfaction.