Ergonomic handle provides a more natural, comfortable grip. Heavy-duty design also functions as a hand guard for added protection. The 2 swivel and 2 rigid casters with non-marking (8 in. x 2 in.) polyurethane wheels provide the best combination of reduced rolling resistance and quiet operation. Wheel brakes on swivel casters are standard. All-welded construction with two (2) heavy 12 gauge shelves. Shelves have 1-1/2 in. retaining lip. Shelf clearance is 21 in. Top shelf height 35 in.