Thanks everyone.

Here's a link to the kit on their website.
http://www.petsmart.com/global/produ...=1126550001769


We only payed $30 or so for it though, it was marked down and it was the only one I saw. No matter how cheap the other stuff is, tunnels are pretty expensive so I think even $30 for just the nice tunnel was a good buy. I've seen tunnels go for $100 on some sites.

It's a nice-sized tunnel, too... Nala can fit in it.