This is an injection-plastic military vehicle model kit.
From the manufacturer:
The Flakpanzer Gepard is a self-propelled anti-aircraft gun developed for large-scale mechanized warfare by West Germany in the Cold War. It is also a very representative Western ground equipment in the Cold War. It's equipped with two Oerlikon KDA 35mm autocannons which can fire continuously or in a burst mode. This vehicle has a length of 7.76m, a width of 3.28m and a combat weight of 47.5 tons. When the search radar is unfolded, its height is 4.22m.
This kit can be built into a Bepard A1 or A2 model. It includes three different muzzle brakes and various accessories. Realistic and easy-to-assemble movable suspension and workable tracks are provided. PE parts and mirror film are included to provide better details. Will be 20.7cm long, 9.6cm wide, and 8.2cm tall when assembled.
Molded in dark green, clear and black plastic; decals, photo-etch parts, and cord are provided.