The John Boos CASWS05-4 Stem Caster 5" Diameter With Bumpers (4) is a specialized set of stem casters designed for enhancing the mobility and functionality of wire shelving units in various industrial and commercial settings. Each caster in this set features a 5-inch diameter, providing a stable and smooth rolling experience that is ideal for both lightweight and heavy-duty shelving systems. The inclusion of bumpers on all casters ensures added protection for both the shelving and surrounding environment, reducing impact and preventing damage during transportation or movement. This product is equipped with locking capabilities, allowing users to securely position shelving units as needed, enhancing safety and operational efficiency. The complete set includes four stem casters, making it a comprehensive solution for those looking to upgrade their shelving systems. These casters are available while supplies last, emphasizing their special availability for immediate needs. The John Boos CASWS05-4 is an essential component for businesses seeking to improve the maneuverability and versatility of their storage solutions, catering to a wide range of sectors including retail, warehousing, and foodservice industries, where adaptable and durable storage solutions are essential for operational success.