Discover the CritterTrail Difference with the new Triple Play Habitat. The habitat includes everything you need to create 3 different challenging environments for your pet. Create a tower, arch, or tunnel design. The narrow wire and spring-loaded door locks ensure that your pet will remain safely and securely inside while your pet explores each of your different cage designs. Habitat includes wheel, water bottle, and food dish. Ideal for Hamsters, Gerbils, Mice, or other small animals.