This is an injection-plastic military vehicle model kit.
From the Dragon website:
The Sturmgeschütz III (StuG.III) has the distinction of being Germany’s most widely produced AFV of WWII, with 10,619 eventually manufactured. Based on the chassis of the Panzer III, it was cheaper and faster to build since it did not have a rotating turret. Once German troops began encountering heavily armored Russian tanks, the StuG III Ausf.F was fitted with a longer 7.5cm gun. This marked the StuG.III’s first true emergence as a tank destroyer rather than as an infantry support vehicle, with 359 vehicles of this variant produced from March-September 1942. Most Ausf.Fs were armed with a 7.5cm StuK 40 L/43 gun, but the final 31 examples featured a longer and more potent L/48 gun. These late-production types eventually led the way to the Ausf.F/8 replacement.
Parts come molded in gray. Includes decals and photo-eched parts.