This item is an injection-plastic aircraft model kit.
Assembly Guide
A set of eight interlocking plates of 1/144 PSP matting (Marston Matting). Appropriate for WWII, Korean War or Vietnam War dioramas. Each sheet measures 9 x 6.5cm (about 3.5 x 2.5 inches), and when linked together provide more than enough space for even a B-29 to park on.