Camshelving® Premium Starter Unit, 24"W x 48"L x 72"H, 4-tier, withstands temperature -36°F (-38°C) to 190°F (88°C), includes: (4) vented polypropylene shelf plates with Camguard™ antimicrobial protection, (2) pre-assembled post kits (posts constructed of steel with polypropylene exterior), (8) traverses & molded-in dovetails, speckled gray, NSF