Norwood Commercial Furniture Adjustable-Height Mobile Black Plastic Utility AV Cart with Power Strip, NOR-OUG1042-SO Sturdy, polypropylene construction resists stains, scratches and dents. Three adjustable shelves make it easy to transport and store AV equipment. Four swivel casters make it easy to move the cart between rooms. Includes a three-outlet power strip with a 15-foot long cord. Top shelf supports up to 308 pounds; middle and bottom shelves support up to 396 pounds.