The Metro MXTTM21C MetroMax Top-Track Mobile Unit Kit 21″W is a versatile storage solution engineered for environments requiring robust durability and flexibility. Measuring 21 inches in width, this kit includes essential components such as four MX74UP 74-inch high corrosion-proof posts, ensuring longevity and resilience against harsh conditions. The package also comes with four bumpers and four roller assemblies that provide smooth mobility, as well as two caster channels and four plate casters for enhanced transportability. Compatible with MetroMax 4-inch and MetroMax Q shelves, which are sold separately, this unit caters to a range of storage needs while ensuring effortless integration into existing setups. Its design is in alignment with NSF standards, affirming its suitability for environments where hygiene and safety are paramount. This mobile unit kit is ideal for various industry segments, from healthcare and food service to industrial applications, offering a reliable and adaptable solution for storage and organization. The Metro MXTTM21C not only stands out for its technical specifications but also for its ability to meet the dynamic needs of different markets, providing unmatched value through its combination of durability, mobility, and compatibility.