Revolutionary design places METRO Super Adjustable 2™ Super Erecta® Shelving among the most flexible on the market today. Entire storage unit sets up easily without tools. Begin with starter units and add on in any configuration using S-hooks. Shelves can be added or adjusted in precise 1" increments. Simply pull corner-release levers, reposition wedges along 1" dia. grooved Site-Select™ posts, and slide shelf to new height. Shelf remains securely in place. Open-wire design improves sprinkler effectiveness, air flow, and eliminates dust build-up. Finished in durable Erecta® Brite zinc-plating. Stainless, Metroseal, and chrome finishes available for selected models. NSF listed.NOTE: Shelves adjust up and down grooved Site-Select™ posts.NOTE: Easily adjustable sleeves and wedges.