WorkPro 2-Tone Nylon Chair Casters For 4000/6000/9000/12000 Models, 2-7/16in, Black/Gray, Pack Of 5

Keep your chair in good condition with a fresh set of WorkPro 2-Tone Nylon Chair Casters. They are designed for durability and help you glide smoothly across most floors. Compatible with WorkPro 4000, 6000, 9000 and 12000 models. Durable nylon construction for lasting performance. Suitable for most vinyl composite floors. Tested to meet ANSI/BIFMA Performance Standards - Manufacturer testing has been conducted on this product to meet specific performance requirements and safety standards set forth by the American National Standards Institute (ANSI) and the Business and Institutional Furniture Manufacturers.