Thanks for the replies. There are 6 "ripples" on the sides. They aren't edges exactly, but they do slope in and out (I guess to reinforce the shape?). Would it work as a temporary colony for a month or so until I get or build a rack? Or would they be chewed immediately? I used to raise rats in a steel rack years ago so I have no experience with plastic type setups. I can provide plenty of wood and toys if it would help.

Thanks!

Lauren