RC Airplane Plane Assembly Parts 2-Vane Propeller Spinner 102mm 4" Product Name : RC Plane Spinner;Fit for : 2 Vane RC Plane Spinner Bottom Outer Dia : 102mm/4";Core for Shaft : 10mm/0.39" Material : Plastic, Metal Net Weight : 127g Package Content : 1 x RC Plane Spinner4 x Adapter Rings4 x Mounting Screws