You are looking at some 3d printed Tycho Starport Ruined Buildings perfect for 28mm and games like Isolation Protocol and Deadzone. These will be printed in grey recycled PLA and will be ready for you to prime and paint and place on your layout.
You can pick your option using the drop down above and the images will change to the correct item you will receive. Each will come with its matching destroyed roof which is removable. The buildings go up footprint size with the A buildings being small squares, the B being a more shipping container style and then the larger C, L shapes to the full on D larger units.
Dimensions are approx, keep in mind these are destroyed buildings and the dimensions are a bit all over the place and hard to convey measurements on especially the L shaped:
Building A: 90mm x 80mm x 80mm
Building B: 168mm x 82mm x 80mm
Building C: 164m x 158mm x 80mm
Building D: 158mm x158mm x 80mm
As a note we do have a listing with these buildings in their normal 'undestroyed' form, so perfect if you want a before and after for your layout once some destruction has occurred.
As shades of grey do change overtime, much like wall paint, you may receive buildings in different shades, roofs will always match the buildings though and most of the time we are sure these will be fully painted anyway. With all 3d prints there might be slight imperfections on the buildings just down to the printing process, however these can all be sanded down, painted over to make perfect using your own modelling skills.