Fivepiece nylon fixed caster set for office chairs. Extended, nonrotating design with circlip and screw for secure mounting. These nylon casters are built for durability and long service life in a variety of office environments. Key benefits Predictable straightline movement: fixed, nonrotating design provides stable, direct motion without swiveling. Durable, lowmaintenance construction: nylon material resists wear and impact while keeping a smooth glide. Easy installation: includes circlip and screw for straightforward mounting on compatible chair bases. Quiet operation: nylon wheels and components work to minimize noise during use. Value in every pack: 5 pieces per lot for convenient replacement of multiple chairs or a single chair with several worn casters. Key attributes Material: Nylon for strength, durability, and smooth operation. Design: Extended fixed casters with a flat, thickened profile for robust support. Mounting hardware: Includes circlip and screw to facilitate secure installation. Configuration: Nonrotating (fixed) casters, suitable for straightline chair movement. Quantity: 5 pieces per lot. Compatibility and installation Intended for chairs that use fixed, nonswiveling nylon casters and mounting hardware compatible with circlip and screw mounting. Check your chair base and mounting holes to ensure compatibility with the included hardware. Installation is straightforward: insert the caster stem, secure with the circlip and screw, and verify there is no play before use. Use cases Replacing worn or damaged fixed casters on an office computer chair to restore stable, straightline movement. Upgrading multiple chairs in an office, classroom, or lab that require durable, nonswiveling casters with secure mounting. Refitting a workstation chair in a conference room or reception area where fixed casters are preferred for predictable tracking and alignment. Care and maintenance Periodically inspect for wear or loose hardware. Clean with a damp cloth to remove dust and debris; avoid harsh chemicals that may affect nylon components. as a set when wear or damage is detected to maintain consistent performance across chairs. Notes This product is supplied as a fivepiece set with circlip and screw for mounting. The design emphasizes extended, fixed support and durability with nylon construction for reliable service in office environments.