Copper 438 3 blade prop.
Ready to use out of the package.
You can sharpen it a little more than it is now (and rebalance), but it is not too bad the way it comes.
38mm Diameter 52mm Pitch (1.49x2.09 inches)
Good for RTR and 12 to 18 sized nitro hydroplanes.
1/8 inch bore.
Made from coper alloy.
Includes 1 prop.