Set of eight 20 ft ISO containers Kibri
13 g (20 g after ballasting)
To assemble! There are two main parts, one with four sides of the box, the other with the end and the roof. Bizarre. Even more bizarre, a groove going all round and which must be filled by parts having exactly the same shape. No interest, except to allow to draw a belt by mixing the colours, like the two in the foreground. There are stickers for the weight values at the ends, but no registration marks.
I photographed the red one upside down!
Assembling. Ballasting to 20 g.