This Muscle Rack 5-Shelf unit is made with heavy-duty steel construction and a durable, silver enamel finish. The steel shelves include wire decking and can be adjusted in 1½ inch increments. Multi‐functional, 3‐way beams can be set up as a flush shelf or tray shelf. The rivet lock system provides strength and rigidity. Plus, everything is easy to assemble—no nuts or bolts required. This NSF-certified shelf unit can be assembled vertically as shelves or horizontally as a workbench.