NewBeeDrone Azi Whoop Prop (2CW+2CCW) 31mm Quad-Blade Prop - Rotor Village
Amazon.com: HQProp 32pcs 31mm 3-Blade Props with 1.0 mm Shaft Micro Whoop Drone Propellers for Tiny Whoop FPV Racing Whoop Like iFlight A65 Quadcopter(Grey and Transparent Blue) : Toys & Games
HQ HQProp 31MM 1.2 pollici elica 3 pale Prop per RC DIY FPV Racing Drone 2 coppie|Componenti e accessori| - AliExpress
Gemfan Whoop 1219 31mm-3 Props (1.0mm) - Clear Red | HobbyRC UK