The hard shell knuckle

fail-safe mechanism to mount almost any device in the most convenient position for you

and Glow Seals Included

Black anodized body and red anodized adjuster knob

Designed to be strongest

OxfordProducts - Boat Wash n Wax Options:OC159.1 The hard shell knuckleThis is for regular washing of decks, topsides and painted areas. Used regularly it's the only cleaner you will need. Key Features A biodegradable wash that safely cleans dirt and grime off fiberglass, metal, plastics, vinyl and all painted surfaces Leaves hulls, decks, chrome and fittings sparkling Leaves a hard long lasting finish wax finish and surfaces will bead up water Can be used for handwashing or through a pressure wash system Does not