We sold this one in October last year, it had come in set up for carrying a narrow gauge locomotive and tender. Pictures below are from last year, it's in pretty much the same condition now as then. I brought it back from Suffolk last Friday, it tows very well.
A box trailer, fitted out to transport a narrow gauge 7 1/4 inch gauge locomotive and tender - Stafford / Romulus / Hunslet sort of size. Complete with spare wheel, stabiliser legs for unloading and fitted canvas cover - the previous owner used to carry his coaches on top.
Bed 70 x 44 x 40 inches