Pitch:21Rotation: RNumber of Blades: 3Number of Spline Tooth: 15Diameter: .14 14Engine Application:4-34Inch Gearcase90, 115HP Thrust 2014 & Newer135 1987 & Newer150 1978 & Newer 175 1978 & Newer200 1978 & Newer 220 198788225 1980 & Newer 225 SeaProMarathon All Years250 400 2 and 4 Stroke 1990 and Newer 3.4 Litre...1984-1986For STERNDRUVES:MODELS 1S,1B,1C...-1982 MODELS 120,140,145 DTS...-1982MODELS 165,228,470,485,888,898...-1982MODELS 225S,233,255TRS,260,280TS,330TRS...-1982For 120-260HP...1983-ALPHA ONE DRIVE (GEN.1 & GEN.2 ALL MOTORS&)ONE DRIVE ( ONE & DRIVES ONLY)Colour:BlackMaterial:Aluminum AlloyPackage Contents:1 set * PropellerOnly the above package content, other products are not included.Note: Light reflection 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.