In addition to a maximum weight capacity of 400 lbs., this 54 inch H AV cart has 35 inch of clearance between the top and middle shelf enabling you to store large AV equipment and more. All three shelves offer a .25 inch retaining lip to secure items in place and are made from a molded plastic that won't stain, scratch, dent or rust. Four 4 inch full-swivel casters, two with locking brake, provide smooth maneuverability, and an ergonomic handle molded into the top shelf with integrated three-outlet UL-Listed electrical assembly offers convenient access to power.