Molded plastic shelves and legs won't stain, scratch, dent or rust. Shelves include ˝" retaining lip edges. Locking steel security cabinet includes recessed handles and channel reinforced doors for strength. Top shelf includes a retractable 19˝"W x 16"D sliding keyboard tray for convenient storage. AV cart includes a 3-outlet, UL listed electric assembly with 15'L surge protected power cord and built-in cord wrap. Media cart includes a set of sure grip pads to keep equipment from sliding. Integral push handle and 4" ball bearing swivel casters (2 with brakes) ensure easy mobility. Assembles easily. Lifetime Limited Warranty.