Set of 5 standard-sized heavy-duty casters for an office chair. Although single-wheeled, these casters are strengthened by a zinc plate hidden beneath the plastic hood. The metal insertion pins are 11mm wide and 22mm long, so they will fit standard office chair bases. These casters are suitable for heavier users. If casters on your office chair are breaking because they cannot cope with the weight they have to carry, replace them with these heavy-duty casters. (IMPORTANT: Do not mix casters - all 5 casters on the office chair must be replaced.) No special tool is necessary for the replacement job. Just pull out the old casters and snap these new ones back into place. These CHCM caster wheels have been tested by F.I.R.A to meet or exceed the industry safety standard. High quality is assured, and we offer a 30 days money back satisfaction guarantee.
Image not available for