Cambro, EXPK2472480, Camshelving® Elements XTRA Post Kit, 24"W x 72"H, withstands temperature from -36°F (-38°C) to 190°F (88°C), includes: (2) non-corrosive composite stationary posts with leveling feet installed, (1) reinforced polypropylene top post connector, (1) reinforced polypropylene bottom post connectorr, (4) reinforced nylon wedges in a bag & instructions, 2 post kits are required for one Camshelving Elements XTRA unit & 1 for add-on unit, speckled gray, NSF (NOTE: This is a new product line. It is NOT compatible with original Elements Series products.)