Kit Includes: Safe-Skeg, Mounting Hardware, Instructions, Allen Wrench and Loctite 262 Brilliantly Polished with a Seamless Design Contains a Drain Hole to Protect Against Corrosion and Freeze-Up For: Select Mercury, Suzuki and Yamaha Marine Engines. See Product Description below for full application information. Material Thickness: 1.5mm (50% Thicker than the Competition) Fit type: Universal Fit