Designed for demanding commercial environments, the **Focus FTSMU21 High Density Mobile Unit Kit** is the perfect solution for restaurants and kitchens needing **high-capacity, space-saving mobility**. This 21-inch wide kit includes four **6-inch polyurethane casters with bumpers**, two **21-inch caster channels**, and four **polyethylene guide blocks**—all engineered to ensure smooth, stable movement while protecting your equipment from impacts. Ideal for **high-density shelving applications**, this kit helps streamline workflows in commercial kitchens, warehouses, and storage rooms, where space optimization is critical. The **600 lb weight capacity** and durable construction make it a reliable choice for heavy-duty use, while the **HDS-Plus™ series** design ensures compatibility with Focus’ modular shelving systems. If you're looking to **improve mobility, reduce clutter, and enhance organization** in your commercial storage, the FTSMU21 is a smart, long-term investment. Upgrade your storage setup today and experience the difference in efficiency and durability.