Upgrade your casters with quality American-made, urethane tread casters from Vitrazza...
FAQ: "Will these fit on my office chair?"
Answer: Most modern office chairs use the same 7/16" stem we include in the box, so these are ALMOST universal. Your existing casters will pull right out with the old stem still in them. Just insert our stem into the new caster and then push those right in. Its that easy! If you have a unique chair with a different stem, just give us a call, we carry the rare alternates.