Heavy-Duty Chromate Wire ShelvingHeavy gauge shelves with open wire design minimize dust, improve air circulation and provide greater visibility of stored items Post's circular grooves combined with tapered plastic split sleeves allow for assembly in minutes with no special tools Shelf ribs run front to back allowing items to slide on and off shelves smoothly Shelves can be adjusted at precise 1" intervals Posts are double grooved every 8" and numbered for easy adjustment Adjustable