This Lazy Look-out Accessory Kit provides extra room to roam for your pet hamster, mouse or gerbil. The dual purpose design provides a safe nesting area and look out tower for curious critters. This universally connectable kit includes the Lazy Look-out, J-Tube, two 3.5" tubes, two connector rings for connection to CritterTrail, Habitrail and S.A.M. systems. It is a great way to expand your pet's living space to create the ultimate habitat. Features beautiful multi-color design.