Shipped and sold unassembled, these easy-to-assemble files store flat and set up in minutes. Square fiberboard tube compartments offer easy removal of contents. Built-in length adjusters at 24" and 30" (and 36" on the 42" deep tubes) customize the length. Bright white finish with large label area outside and handy grid inside. Velcro fasteners secure doors and plastic channels protect edges. Corrugated fiberboard with wood side panels for strength. 2/carton.