The bottom is not flat and it is not smooth. It was all scratched up like it had been used before or something. The black was all marred up. The plexi was also scratched up, likely from the box it came it. I tossed this aside and couldn't even use it. With some care it could be of use with some cars models, but only that and only that and only if they aren't all scratched up by being put in the box!
Rating: [4 of 5 Stars!]