3 in. Gray Thermoplastic Rubber and Steel Swivel Threaded Stem Caster with Locking Brake, Capacity 110 lbs, Heavy-duty, Shock absorbent, Smooth rolling, Quiet operation, Corrosion resistant, Easy installation, Long-lasting performance, Non-marking tread. Commonly used on utility carts, mobile shelving, and workstations that need to move easily between tasks and then stay securely positioned. Well-suited for workshops, garages, and storage areas where frequent repositioning and stable stopping are both important. Also ideal for DIY furniture or custom builds that require quiet, smooth mobility with dependable control during stationary use.