This is the propeller cap on the end of the propeller hub closest to the prop nut. This item is for just the cap, not the aluminum core propeller HUB.
B3 Replacement Blade Set 13-3/4 X 15 | Piranha Propellers 13.7515B
B3 Replacement Blade 13-3/4 X 15 | Piranha Propellers 13.7515B
Piranha Propellers Propulsion Kit D-Series 3-Blade
D3 Replacement Blade Set 10 X 10.5 | Piranha Propellers 1010.5D
Piranha Propellers Blade Exchange - Free! Use Code: Piranha Blade Exchange