MetroMaxr 4 Starter Shelving Unit, 48 in W x 18 in D x 74 in H, rust proof, 800 lb. capacity per shelf, 2000 lb. capacity per unit, (5) open grid all-polymer shelves with removable shelf mats, bag of (4) wedge connectors for each shelf, (4) polymer posts, Microban antimicrobial product protection, KD, NSF