Easy-view habitat with two levels of space for all hamsters, gerbils and mice. Oversized, clear-view door allows for easy interaction with pet. Removable Petting Zone acts as a travel carrier and resting location. Pre-assembled for quick set-up. Includes quiet exercise wheel, water bottle and food dish. Create a dream environment with expandability ports. Easy to clean construction. Kabob hook locations. Comes complete with water bottle and food dish, Removable Petting Zone™ and exercise wheel. (Formerly known as CritterTrail Discovery). Habitat measures 20"L x 14.75"W x 11"H.