Application: Speed & EfficiencyGo Faster, Go Shallower, Go Quieter with MotorGuide's 3-blade, glass-filled, tapered hub design that's more rugged. Get the durability that the pros demand. All of the advantages of the Machete III propeller in a more durable material for long lasting performance. (Includes prop, prop pin, and prop nut). Motorguide makes it simple to upgrade your trolling motor prop to the glass-filled Machete III, or any other upgraded propeller, because our lower units are standardized at 3.5".