Contains parts to correct the rear of the kit nacelles and inner wing root, as well as detailed, accurate uncovered exhaust nozzles with separate actuators. Also features separately molded APUs, flow vanes and flame holders. The amount of detail added in . This set alone is going to add a lot of visual interest to your model. For Monograms's Rockwell B-1B Lancer (designed to be used with Monogram and Revell kits)