Quicksilver Black Diamond 13.75 x 15P Propeller QA2034XThe Quicksilver Black Diamond propeller is the world's best selling aftermarket prop. This three blade, aluminum propeller delivers performance, durability, and value. The Black Diamond is a great choice for engines with less than 250 HP with a top speed of less than 50 MPH.Features:General-purpose 3-blade propeller Inexpensive and easy to repair World's best selling aftermarket prop Specifications: Diameter: 13.75; Pitch: 15; Rotation: Standard (Right Hand); Number of Blades: 3; Material: Aluminum; Hub: Flo-Torq II hub kit (sold separately); Fits:; 40-60 HP Mercury Command Thrust/ Bigfoot (Large Gearcase) outboards.; Most other outboards 50-140 HP (15-Tooth Spline).;