Super Pet Ferretrail Flex-e Fun-nels www.petco.com - $25.99 Product Description: Made of durable vinyl, Flexi Funnels easily connect together with the Super Pet exclusive vented rings. Go as long as your home can handle! Buy two for an even longer tunnel. For variety you can add FerreTrail Funnels. Remember, if it says FerreTrail, it can be connected. RattyRat's Review: Our rats really liked this toy, however this thing was impossible to clean and our rats quickly chewed it full of holes. This toy is much too expensive and much too impractical.