Our propellers are designed for easy installation. Material: High-quality aluminum alloy High-performance quality: Made from premium raw materials with advanced manufacturing processes and strict quality control. Pitch: 11 Rotation: R Number of blades: 3 Number of spline teeth: 8 Diameter: 9 1/4 Compatible with outboard engines 9.9-20HP Fits models: T8, T9.9 – all years F9.9 (4-stroke 2000–2007) F15 (4-stroke 1998–newer) F20 (4-stroke 2007–newer) 9.9hp (2-stroke 1984–2009) 15hp (2-stroke 1984–2009) F15C (2007–newer) Color: White Package includes: 1 x Propeller Note: The package includes only the items listed above. Other accessories are not included. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.