Feature●Whale Tail Boat Hydrofoil Stabilizer Fits 40 to 300 HP Outboard Motors●Fits Outboards and Sterndrives 40-300 HP. For Volvo SX-A, DPS, DPR, DPH series and the Volvo 280 and 290 series, longer bolts and 1" fender washers are required. Will fit under Volvos top mounted anode, by reversing anode to wide end forward. Not recommended for Volvo Ocean Series XDP●NorthBoat FO2003 Whale Tail Hydrofoil Stabilizer Size H:17 Inches W:14.5 Inches●Proven to Defeat Cavitation and Eliminate Porpoising●Package Contains:1 pc Sport 300 Hydrofoil Stabilizer, 4 Sets Stainless Steel Screws and Nuts, 1 pc 6.5MM Drill BitDescription