Quicksilver Black Diamond 3-Blade Aluminum Propeller, 9.25" Diameter x 9" Pitch, Right Hand RotationFor good overall performance and value, the Black Diamond is your prop. While Black Diamond aluminum propellers are standard equipment on most boats with Mercury Mariner MerCruiser power, they are a perfect replacement for all engine brands through the use of the Quicksilver Flo Torq II hub system. The Black Diamond is recommended for use on boats with up to 250hp and with a top speed of less than 50 mph. The high quality casting and durable high