Critter trail fun-noels value packs are the perfect way to start expanding your critter trail habitat. If you can imagine it, you can build it with critter trail fun-noels. The tubes are available in a variety of colors, shapes and sizes so you can create a huge playground for your pet. This value pack gives you three sizes of fun-noels tubes (five tubes total) and fun-noels rings. With the fun-noels value packs, you can give your critter trail habitat all the twists and turns you need to turn your critter trail habitat into a fun-nel city.