18", 5 Shelf, Ventilated, Interlocking Shelving Unit, 18.06"L x 38.88"W x 71.38"H, New Honeycomb Design, Interlocking Shelves Connect Multiple Units, Shelving Can Be Wall Mounted For Extra Stability & Strength, Built In Feet Keeps Shelving Off The Floor, Assembles Without Tools In 2 Minutes, Weight Bares 750 Pounds Per Whole Unit, 150 Pounds Per Shelf, Made In U.S.A.