5 Tier Wire Shelving Add-On Unit 48 W x 24 D x 74 H Green Epoxy Finish. Add-On shelving units allow unit expansion to make the most of storage space. Includes 2 posts with leveling feet 5 shelves snap-on sleeves and S-hooks to join units. Poly-Green is designed with a powder coated green epoxy finish that handles temperature and moisture extremes well. Reinforced shelves with welded surface ribs for added strength. Open design to maximize air and light circulation and minimize dust accumulation. Includes 5 shelves 2 posts snap-on sleeves and S-hooks to join units. Shelves easily adjust without tools at 1 increments. NSF approved for wet or dry use. Lot of 1