Kaytee Critter Trail Tubes Value PackKaytee CritterTrail Fun nels Value Packs are the perfect way to start expanding your CritterTrail home. If you can imagine it, you can build it with CritterTrail Fun nels! Fun nel accessories for turning CritterTrail habitats into tube cities Includes 3 tube sizes (5 tubes total) and rings Endless combinations and possibilities Kaytee Value Pack gives you three sizes of Fun nels Tubes (five tubes total) and Fun nels Rings. With the Fun nels Value