Technical Specifications: Model Number: 11 3/8 X 12-G ( 11 3/8 X 12) Number of Spline: 13 Number of Blades: 3 Material: Aluminium alloy Color: White Prop rotation: Right - Dimensions - Length: Diameter: 11 3/8" Height: 25cm / 9.8" Hole: 9cm / 3.5" Pitch (in.): 12" Fittment: ✔ F30B All Years ✔ 40hp 2 Stroke 1984 & Newer ✔ 48hp 1995 & Newer ✔ 50hp (not T50) 1984 & Newer ✔ 55hp1976-1995 ✔ 60hp 2 Stroke 1976-1991 ✔ F40hp (4 stroke) 1999 &Newer ✔ F50hp (4 stroke) 1995 &Newer ✔ F60hp (4 stroke) 1999 &Newer Features and Benefits: ● Made of aluminium alloy, long lasting finish. ● Tuned Vents for Fast Hole Shot. ● Improve Handling and Boat Lift. ● A good choice for your Yamaha outboard. ● Good design, high quality, and performance in a low-cost, lightweight motor propellers. Notice: 1. Please allow 1-3mm error due to manual measurement.Pls make sure you do not mind before you bid. 2. The color may have different as the difference display,pls understand. Package Contents: 1 x 2-stroke Boat Propeller