This is the replacement Clear Canopy for the Top-Flite ARF control line Nobler model. FEATURES: Clear polycarbonate construction Molded in cutting lines INCLUDES: One clear canopy key #8 REQUIRES: Cutting out and installing onto the model following the manual that came with the model SPECS: Length: 4.75" (121mm) Width: 2" (51mm) Height: 2.25" (57mm) kpm12/16/2003 ir/jxs