This is an injection-plastic military vehicle model kit.
The image is a 1/35 scale model. Parts are molded in grey and clear plastic.
From Tamiya's site:
From 1937 to 1944, over 78,000 medium 3ton 4x2 Cargo Trucks were produced, and they became the most recognized German army truck in WWII. It featured a durable rear-wheel-drive chassis with superior off-road handling and a large cargo area, which enabled superb load-carrying capacity. They were used until the end of war to transport troops and supplies on all fronts.