Stainless steel ski tow mounts flush to the transom and has no exposed fasteners. Will accept up to 5/8" tow line, but rises only 1/2" outward. Backing plate (2-1/2" x 5") and stainless locking nuts included. Fits transoms 3/4" to 2 1/8" thick. Requires 2 1/8" hole.