Replaces only the wheel on your caster. Replacement requires you keep your existing caster, bolt, and nut.
In some cases it may be necessary to replace the thread locking fluid/compound on the caster bolt’s thread after removing the nut to replace the wheel. When not using new thread locking fluid, please be sure to occasionally check your wheel to make sure the nut remains tight after removal and replacement. Lock washers may have been included with your caster, and may make thread locking fluid unnecessary.