Rotation: R Number of Blades: 3 Number of Spline Tooth: 12 Applications: For Mercury/Mariner Outboard Engines 4-6HP 4HP(4-Stroke)...1999 - Newer 4HP(2-Stroke)...1987 - Newer 5HP(4-Stroke)...1999 -Newer 5HP(2-Stroke)...1987 - Newer 6HP(4-Stroke)...1999 - Newer For Tohatsu/ Outboard Engines 4-6HP MSF4...All Year MSF5...All Year M5B...All Year MFS6...All Year Colour:black Material:Aluminum alloy Size: Diameter: Approx. 7.8 inch(198mm) Pitch: 9 inch(229mm) Package Contents: 1 x Propeller Only the above package content, other products are not included. Note: Light 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.