The boxes themselves are clean and nice. The hole is a bit small, but OK. The issue I have is that there is no insert beyond a styrofoam square with a circle cut out of it... and I don't see anywhere to buy the inserts. The Bottom of these should be concave so that the babies don't get splayed legs. I guess that's why these boxes are relatively inexpensive. They come with mounting hardware, which is nice, but the concave bottom is really a necessity and if you're going to make boxes that don't have that, then you should be selling the inserts.