1. Our propellers make your installation process easier.2. Material: Adopt material3. Outstanding Quality: Based on fine raw material, superb manufacturing process and strict quality control, our propellers are more durable. Pitch:11Rotation: RNumber of : 3Number of Spline Tooth: 8Diameter: Approx. 9 1/4Applications:For Yamaha Outboard Engines 9.9-20HPT8, T9.9...all yearsF9.9(4 stroke)...2000-2007F15(4 stroke)...1998-newerF20(4 stroke)...2007-newer9.9hp(2 stroke)...1984-200915hp(2 stroke)...1984-2009F15C...2007-newerF20(4 stroke)...2007-newercolour:WhiteMaterial:Aluminum alloy Package Contents:1 x Propeller Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.