Looking for a way to keep your AV equipment safe and easily accessible? Balt's The Boss Metal Presentation Cart is a great choice, because it's made from fully welded steel, has plenty of storage space and locks securely. Perforated sides provide ventilation and prevent overheating. A seven-outlet electrical assembly is mounted on the bottom shelf and a built-in VGA, USB and AV input/output inlet makes cable management simple. The non-skid mat on the retractable projector shelf helps hold equipment in place. Wheel this mobile cart from room to room on four-inch casters (two locking).