Habitrail Ovo Dwarf Hamster Habitat is the ideal home and play environment for your dwarf hamster or mouse. Specially designed with narrower tubes to allow your smaller pet to climb and move around more easily. Features an easy-to-clean deep base design. Contains shavings inside the cage with no messy corners to clean. Approximately 19" x 13-1/2" x 18" tall. Modular habitat is fully compatible with all other Habitrail Add-ons and Add-Ins. We recommend the use of the Habitrail Mini Trails for dwarf hamsters and mice. Includes: Main Habitat Unit Quiet Ovo Wheel Ovo Den Ovo Transport Unit Ovo Water Bottle Wheel Support Assembly - with food dish and shelter in base (12) Lock Connectors (3) Windows (2) Mini Straight Tubes (4) Mini Tees (2) Mini Elbows