The Classroom Basics Extra Large Adjustable-Height Steel Cart gives you more sturdy space for your AV equipment needs. Each of the three spacious shelves measures 32"x 20" and has a retaining lip to help keep contents in place. There's also a pullout tray that's perfect for laptops or keyboards. The frame and shelves are constructed from roll-formed steel with a powder coat painted finish for lasting durability. An integrated outlet and cable pass-through cutouts help organize your electrical needs, and full-swivel 4" casters with two locking brakes make the cart easy to move or quickly secure in place.