Dock Edge's answer to every boater's docking problems. It may be mounted horizontally or on vertical dock corners and pilings. The unique design also functions as a handy grab rail when docking and is perfect for Bass and Ski boats where the gunwale over hangs the dock and requires top protection. The exceptionally strong Profile is further reinforced by two internal supports. Like all DOCK EDGE Profiles, it is constructed of marine grade flexible PVC, developed not to chip or crack under normal usage. It is unaffected by oil, gas or salt water. UV inhibitors and fungicides prevent fading, yellowing, deterioration from sunlight and unsightly blotching.