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4pcs Minidrones Propeller Blades Props for Parrot Minidrone Mambo FPV, Airborne Cargo Drone, Airborne Night Drone, Hydrofoil Drone (Black)Amazon$9.99
Anbee 4 Colors Propellers Props Combo for Parrot Minidrones Rolling Spider, Airborne Cargo & Night Drone, Hydrofoil Drone, Mambo FPV, Swing Drone (Colors: Blue/Red/White/Black), Pack of 4-setsAmazonSAVE $11.84
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Automated Low-Altitude Air Delivery: Towards Autonomous Cargo Transportation with Drones (Research Topics in Aerospace)Amazon$13.99
Hanatora 5 Colors Propellers Props Combo for Parrot Minidrone Mambo FPV/FLY/Mission,Swing,Rolling Spider,Airborne Cargo/Night,Hydrofoil Drone,5 Set(Colors: Blue/Red/White/Black/Yellow)Amazon