Feature 1Applicable Model: Boat motor propeller fit for 9.920HP outboard engines. Fit for 21/2in Gearcase; Fit for CT/Bigfoot Model 9.9 2005Newer; Fit for 15/20 HP 4 Stroke 2007Newer. 2Low Resistance: The aluminum alloy propeller blade has 3 sharp blades, and the blade profile is subject to almost zero resistance when propelling underwater, which can quickly cut the water surface and advance forward. 314 Spline Teeth: The propeller blades are connected by 14 spline teeth, forged with highdensity pure copper, which better match the speed of the engine, so that your yacht can charge faster on the water. 4Seawater Resistance: The surface has been painted, which is smooth and clean, and resistant to salt. Even if it is immersed in seawater for a long time, the propeller blades will not be damaged. 5Excellent Performance: Designed based on OEM blade geometry, with appropriate cupping and camber added. Excellent bow lift, acceleration and top speed as well reducing slip, increasing bite. A cupped propeller will exhibit very high efficiency at high speeds as well as minimize cavitation under heavy loads. 6High Speed Applications: 9 1/4in diameter x 10in pitch, positive rake benefits from normal bow lift to permit the use of a larger diameter propeller, while negative rake can provide extra blade strength for use in very high speed applications.Item Type: Outboard PropellerMaterial: Aluminum alloy + copperPropeller Diameter: Approx. 9 1/4inPitch: Approx. 10in/25.4cmBlades: 3Spline: 14 teethRotation Direction: RightFitment:For 9.9-20HP Outboard Engines For 2-1/2in GearcaseFor CT/Bigfoot Model 9.9 2005-NewerFor 15/20 HP 4 Stroke 2007-Newer .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Outboard Propeller