Product review (5 stars): Awesome for ferrets
I bought this a few years ago for my ferrets and they LOVED it! The openings are perfectly sized for them. Not too small to get stuck in, but not too big to be 'uninteresting.' Just right. The length of this is also great. My ferrets loved zipping through this as well as hiding inside and sneaking up on each other. It's not too crinkly and noisy to be annoying for humans, but it does make a little bit of noise which is good because my ferrets liked it.

This isn't as cutesy and pretty as tunnels marketed specifically towards ferrets but that doesn't really bother me, and my ferrets didn't seem to care either. That's really the only thing bad about this. Everything that's marketed towards ferrets is always really expensive (seriously, go look at the price of regular ping pong balls, 'cat' ping pong balls, and 'ferret' ping pong balls. The price differences are crazy) so sometimes it's better to go with something more 'generic' like this dryer hose. It's the same thing as the special ferret tunnel I saw in Petco the other day being sold for $15.

Overall, I love these tunnels! I'm buying another one of these soon as my last one destroyed by accident. Someone dropped a heavy box on it and it wound up getting dragged around. It can withstand ferret teeth and claws, but not getting crushed, sadly.

As far as this being for dryers... you'll have to read someone else's review, sorry! For ferrets though, this is perfect.