Gemfan 1409-3 are lightweight tri-blade polycarbonate propellers with a 35mm diameter for motors with a 1mm shaft, suitable for small Tinywhoops such as the BetaFPV Meteor65 Pro II. With a 0.9" pitch, a single propeller weighs only 0.2g, resulting in a low moment of inertia and fast throttle response. The manufacturer recommends them for 0802 motors and drones with a takeoff weight of up to 40g.