Picked these up from an old estate.
They are hollow and there is a hole at the top of each car for a writing instrument to be inserted.
They are marked Japan as can be seen in the pictures.
Good condition. No visible chips or cracks; some paint loss.
Each car measures approximately 4-1/4 inches long, 1-7/8 inches wide, and 4-1/4 inches tall at its tallest section.