This would probably be on my purchase list, if i knew exactly what i was buying. The product description is unclear.
Ferretrail bubble wave fun-noels maze includes both a tube and elbow to create tunnels of fun for ferrets, guinea pigs, pet rats, chinchillas and other furry friends. Ferretrail fun-noels can be connected to each [...]

I love Guinea Pigs and have kept them for over ten years, and during that time we’ve purchased many Super Pet products. This product is supposed to be designed for ferrets, guinea pigs, chinchillas and rats. We decided recently to buy a couple more of these Fun-nel Tee tubes for our new piggy, [...]