Performance Through Advanced Design: Each HQProp propeller set undergoes meticulous design using advanced computer modeling and simulations, ensuring optimal performance, durability, and elevated flying experiences across diverse drone setups and flight conditions., Efficient Power for Micro Drones: Enhance your micro drone's power and efficiency with the HQProp 31MMX4 31mm 1mm Shaft 4-Blade Propeller Set. Crafted from durable poly carbonate, this set includes both clockwise and counterclockwise rotations, providing efficient thrust, stability, and control for your micro drone's precise maneuvers, all in a compact and resilient package., Premium Materials and Precision Molds: Crafted from top-tier plastics using precision molds, our HQProp propellers boast exceptional quality and consistency, delivering outstanding performance, balance, and durability for your drone and hobby needs., Easy Set-up and Compatibility: The propeller sets come with a balanced mix of clockwise (CW) and counterclockwise (CCW) rotations, simplifying installation and compatibility, so you can spend less time on setup and more time flying.