There are a number of innovative features: the wheels, (Binnie plastic), axles, axle bearings (eyelets - a lot easier to work with than smaller bearings) and pins-to-make-the-couplings-from come packed into a specially cut piece of ply backed with masking tape, which means that it's easy to check that they're all these, and makes the whole kit fit neatly into a standard Large Letter sized envelope. The strapping, dumb irons and axlebox details are all laser cut from business card stock - there are two layers for the door strappng and three layers (plus a layer of ply) for the axlebox covers.
There are cocktail sticks (cut them in half lengthways and use 8mm lengths to represent the hinges) and a whole string of 2mm square "nuts" to glue on the wagon door strapping, but I ain't going there!
I'm going to give it a coat of matt varnish in the morning - I like to have at least one wagon in the fleet "in the wood" and it'll stop it getting dirty.
All in all, a delightful little wagon.
