Ideal for Office Mail, Classrooms, Libraries, Supply Rooms, AV/Video Equipment Transfers, Food Services, Science Labs, and Health Services. Each cart consists of three shelves, which reverse to create a tray with a 2" lip and are height adjustable at 3-1/2" intervals. Non-marring casters, 2 locking measure 3" in diameter. Weight capacity of 65 lbs. per shelf with total capacity of 200 lbs. Durable furniture grade textured grade steel construction. Assembly required. Ship via UPS. Made in the USA.