Light weight and precision aluminum CNC machined.
Pitch Ratio: 1.6
No. of Blades: 2
Shaft Size: 4mm
Drive Dog Slot: 3x3mm
Very nice looking prop.I'm using it on my 32" catamaran. Although it came totally unbalanced the price is good enough for this piece of art.Got my prop in a great and nice shape..super light weight..cheap in prise..but unlike the 45mm that i bought togehter with this 40mm prop, this prop is not sharpen..very disappointed with it..