The Power-Pole Pontoon Mount Adapter Bracket Kit allows for easy installation of Power-Pole Shallow Water Anchors to the 14.5"-16" wide M-brace of pontoon-style boats. All adapter brackets are made from aircraft-grade aluminum and feature four layers of JL Marine powder coating, including the gloss black top coat, to resist corrosion and increase durability. Made of aircraft-grade aluminum Gloss black powder coating resists corrosion & increases durability | Power Pole Power-Pole Pontoon Mount, 14.5"-16" Face, Black