The Cambro EXMU215470V5480 is a durable all-plastic shelving unit designed for versatility and strength. Measuring 21"W x 54"L x 70-1/4"H, this 5-tier mobile unit can withstand extreme temperatures ranging from -36°F (-38°C) to 190°F (88°C), making it ideal for various environments. It features five vented reinforced polypropylene shelf plates that include Camguard® antimicrobial protection, ensuring a hygienic storage solution. The unit is supported by four composite posts and comes with pre-assembled post connectors and wedges for easy setup. It includes ten universal traverses and five bags of dovetails (10 left, 10 right) for secure shelf placement. The four premium swivel casters with total locking brakes provide mobility and stability. With a maximum capacity of 900 lbs., this speckled gray shelving unit is NSF certified for safety and quality. Please note that this product is part of a new line and is not compatible with original Elements Series products.