Feature: 1. The aluminum alloy propeller, with three sharp blades, can propel rapidly through the water, and in underwater propulsion, the blade profile is subjected to almost zero drag. 2. Higher the rake angle will tighten the vortex generated by the propeller, which improves the lift and overall performance of the ship, and improves the handling and lift of the ship through the forward rake and cupping. 3. Adjusted progressive pitch angle acceleration and channel water to reduce slippage and improve performance and fuel economy. 4. Propeller blade connections are pure copper 13 spline teeth to better match engine speed, making your boat outboard engine can be run faster on the water. 5. The surface is painted, very smooth and clean, very hard, resistant to salt and decay, and becomes stronger over time, and the blade becomes smoother. 6. This is a good market replacement that can replace or repair originally damaged old propeller blades to give your outboard engine better propulsive performance. Specification: Item Type: Boat Outboard Propeller Material: Aluminium Alloy + Copper Diameter: Approx. 11 3/4in/29.85cm Pitch: Approx. 10in/25.4cm No.S of Blade: 3 No.S of Tooth: 13 Rotation: RH Application: Used for replacement, refurbishment, repair, upgrade, etc Fitment: Replacement for Yamaha Outboard Engines 25-60HP 3-1/2in Gearcase T25hp...2010-newer F30(4 stroke)...2001-2005 40hp(C40)...1984-newer 48hp...1995-2000 50hp(Not T50)...1984-newer F40(4 stroke)...1999-newer F50(4 stroke)...1995-newer 55hp...1976-1995 60hp...1976-1991 F60(4 stroke)...1999-newer . Package List: 1 x Boat Outboard Propeller