Ware Tube Time Small Animal House Large two level connectable cage for critters who love to climb and crawl Tube time system is interchangeable with other tubular cage systems including Critter Universe, CritterTrail, Habitrail, and S.A.M systems Includes connectable tube system, contoured shelf, exercise wheel, and universal tube connectors Ideal for Hamsters, Gerbils, Dwarf Hamsters, and Pet Mice Measures 20-1/2 inches long, 16 -1/2 inches wide, 19-1/2 inches high