This is a series of gashapon (capsule toys) or trading figures depicting military vehicles.
A big box full o' Tigers! Well, you get two complete 1/48-scale Tiger tanks in this box, anyway, each in seven sections, for a total of 14 sections per box. And here's the kicker: these models feature complete interiors! AND a crew of five, posed to fit perfectly in the interior! Amazing! Also includes the engine, drive shaft, and transmission, with flexible belt-style tracks.