Six cylindrical support bars provide strength and durability. Plastic endcaps, 1-1/2'' ribbed angles and heavy duty 5'' stem bolted swivel casters. 500 lb. capacity. Front Load. Rack, mobile pan, full height, open sides, with angle tray guides on 3'' centers, capacity 20 - 18'' x 26'' sheet pans, bolted extruded aluminum frame, front loading, 69-1/4'' high.