Presentation cart holds all equipment on three sturdy shelves that adjust in 1-1/4″ increments. Handy unit moves on heavy-duty 3″ casters (two locking) for easier movement between rooms. Grommets keep cables managed between shelves. Top shelf measures 18″ wide x 16″ deep. Laptop shelf measures 18″ wide x 14″ deep, and bottom shelf measures 18″ wide x 18″ deep. Optional electrical assembly (sold separately) includes four UL-CSA approved outlets, 25′ cord and cord winder. Tops are gray, and the frame is black.