This is the Spinner for the Great Planes Super Sportster EP. FEATURES: Constructed of plastic, Red in color INCLUDES: One spinner cone and backplate (part #10) for the Great Planes Super Sportster EP REQUIRES: Installing backplate on prop shaft, propeller and cone SPECS: Length: 2.05" (52mm) including backplate Diameter: 2" (51mm) COMMENTS: May work with other electric airplane applications. jxs 4/01/05 ir/jxs