Amazon.com: RC Folding Propeller 9×5 inch w/Spinner Size D38×H35mm, and Motor Shaft Diameter φ4.0 with Nylon Plastic Spinner for RC Plane Drone Remote Control Airplane (9×5, Shaft φ4.0) : Toys & Games
Amazon.com: E-flite Folding Propeller, 130 x 70mm: UMX Radian, EFLU2902 : Toys & Games