Product review (5 stars): Flexible Hose - That's what it is!
This is a flexible vinyl hose, as described. It seems to be sturdy (but if it proves otherwise over time I will update this review). I use it for the vent from my bathroom ceiling fan. I imagine it could work well as a tunnel for a small animal, though it might be chewable. You could use it to make robot arms for a Halloween costume, or as a tennis ball chute if you need to move a bunch of them from the attic to the basement. Get creative! Or, be like me and use it for your bathroom vent.