That's a *yamaha g-series outboard propeller*
from the label in your photo:
- *brand*: skytop "good choice" - this looks like an aftermarket/oem replacement version
- *part number*: 663-45956-01
- *type*: propeller
*specs*
- *size*: 12 1/4" x 9"
- *blades*: 3-blade
- *material*: aluminum
- *rotation*: right-hand
- *spline*: 13 tooth
- *series*: g type
3d618882
*what engines it fits*
mainly *yamaha 25-60hp outboards*
*yamaha 2-stroke*: 40h, 40v, 40q, 40x, 50d, 50g, 50h, pro 50, 55b, plus 48hp, 50hp, 55hp, 60hp models
*yamaha 4-stroke*: f30a, f30b, f40a, f40b, f40f, f50a, f50f, f50h, f60a, f60c, f60f, also f25 high thrust
it also lists compatibility with some *honda 35-60hp* outboards
this is a good all-around prop for general use, known for lightweight, low cost, and decent acceleration/top speed