This set contains four super detailed, 3D printed 2-tier rockets and rails, as carried by Sea Furies and other a/c (8 rockets in 4 pairs). The rockets and rails are printed as one piece and the folded metal clips that hold the rocket to the rail are not molded solid, but accurately represent the open gaps in the clips. The separately printed 60 lb. rocket heads are super detailed, and the fins are nice and thin. The rockets are also accurately mounted, with the lower rocket's rear clip attaching to the exhaust nozzle, not forward of the fins, as on the kit parts. For Airfix, Trumpeter, and other kits. CAD By Craig Sargent (designed to be used with Airfix, Hobbycraft and Trumpeter kits)