ATA rack cases for standard 19" rackmountable gear. All OSP cases are constructed of 3/8" plywood. Ball corners, aluminum on all edges, and front and back rails on all models. This unit has a table attachment on the front cover. Once set up, the table stands 24-3/8" to the underneath and 28" to the table top. FEATURES: 3/8" Plywood w/Black Laminate Tongue & Groove Metal Railing Ball Corners Industrial Rivets Industrial Latches Industrial Spring-Loaded Handles* Rubber Feet on 8 unit and smaller Heavy-Duty pre-tapped Rack Rails (w/Screws) Front & Rear Rack Rails 4" Casters on 12 unit and larger *2 & 3 shallow units come with rubber handle on front cover