BOT Aircraft Propeller option:
Dual 16×5.4 Propeller with Machined Aluminum Self Tightening Quick Release Adapter.
A different option to folding propellers, this design offers the ability to remove the propeller quickly or install it quickly by simply threading it on to the motor. It is a hastle free secure way to operate removable propellers.
1 Clockwise Propeller
1 Counter Clockwise Propeller
1 Aluminum Adapter with hardware.