This set consists of one detailed, accurate upper cowling. This set improves the detail and corrects the spacing of the machine gun troughs, which are too close together on Revell's Bf-109G-6 kit part. For non-Erla built Bf-109G-6s. A one piece, easy to install correction for the Revell kit. Pattern by Gunnar Jansson (deigned to be used with Revell kits)