STARTER UNIT INCLUDES 4 POSTS WITH LEVELING FEET, 4 WIRE SHELVES AND PLASTIC SNAP ON SLEEVES TO SECURE SHELVES TO POSTS..Nexel Black Epoxy Wire Shelving Starter 54"W x 24"D x 74"H FEATURES: REINFORCED SHELVES WITH WELDED SURFACE RIBS FOR ADDED STRENGTH OPEN DESIGN TO MAXIMIZE AIR AND LIGHT CIRCULATION AND MINIMIZE DUST ACCUMULATION INCLUDES 4 POSTS, 4 SHELVES AND SNAP ON SLEEVES SHELVES EASILY ADJUST WITHOUT TOOLS AT 1" INCREMENTS NSF APPROVED FOR WET OR DRY USE AGAINST RUST AND CORROSION THIS EPOXY WIRE SHELVING IS NSF APPROVED FOR WET OR DRY USE.