The Bretford A2642NS Adjustable AV Cart with Pull-Out Notebook Shelf features a 14"D pull out notebook shelf, and easily adjusts to heights of 26, 30, 34, 38 and 42". The top shelf supports a projector or CRT monitor up to 20" while the open, roomy lower shelves accommodate a DVD player, scanner, speakers, or other AV equipment. Constructed from steel for strength and durability, the A2642NS has three 20-gauge steel 18" x 24" shelves with a 1/4" lip, and 14-gauge steel legs. The top shelf includes a ribbed rubber mat to keep your equipment from sliding off.