Presentation cart features a built-in storage box with lock to secure your AV equipment. Dual tops adjust in height and tilt on demand to use any combination of audio/visual equipment such as laptop, projector, document camera and audio support. Upper top adjusts from 34" to 44". Lower top adjusts from 28-1/2" to 38-1/2". Presentation cart rolls on four 3" heavy-duty casters (two locking). Use a mounted six-outlet power strip for wire management. Frame is made of steel and has matching ivory woodgrain tilting shelves.