Hydroplaner Stainless Steel Hydrofoil Stabilizer for Outboards and Stern Drives 4-350 HP (Except Evinrude G2 Models) Made in USA Stainless Steel Construction, Faster Hole Shot, Gets on Plane Quicker Improves Stabilization and Ride Quality, Increases Fuel Efficiency 20-30% Reduces Bow Rise to Improve Safety, Adds an Impressive Look to the Engine Porpoising, Chinewalking and Cavitation are no Longer a Problem, Sized Specifically For Different Engine Sizes Aids in pulling Skiers and Tubers Providing a Smoother Wake, Easily Installed in 30 Minutes with Common Tools