Our BOX-RACK works as drawers, but you can easily pull the box out and bring it with you. The box racks are without moving parts, which makes them extremely durable in wet or dusty environments. The BOX-RACK with workbench has a fold down table. The standard BOX-RACKs works with all the POB-6 boxes. BOX-RACK for POB-12 and ALUMABOX CW 12 are available on order. The BOX-RACKS can also work without boxes to compartmentalize a section of the cage.