This product is a OO9 Narrow Gauge Brake Van with an open door, as seen first in series 4 of the Thomas the Tank Engine & Friends TV series. Also avaliable on my shapeways stock is a wide range of other narrow gauge rolling stock, including a variation of this brake van with a closed door (found here: https://www.shapeways.com/product/8R9N5HJ6W/oo9-narrow-gauge-brake-van-talyllyn-sr?optionId=62592619 ).
In order to complete this model, it simply needs to be painted in the colours of your choosing, and needs wheels and couplings added to it. Please see this video on my Slate Trucks (which share the same chassis) to see what sort of wheels and couplings are best suited to use: https://www.youtube.com/watch?v=f9BqxAVdCQQ
Please note, the model seen in the photos is slightly different from the final product (the interior detail is unfinished in the prototype), and it was printed by my own home printer rather than Shapeways' printer, so any imperfections in the print can be attributed to that. If you were to buy one, yours would look exactly like the Shapeways Render shown.
If you have any questions, leave them here on Shapeways or on any of my social media below.
Until next time, I wish you dry rails, smooth running, and happy shopping!
YouTube: Elsbridge Productions