This universal office chair caster set delivers smooth, silent rolling and strong durability. Built with a steel body, ABEC7 bearings, and soft polyurethane, it supports up to 500 lbs while protecting hardwood, carpet, tile, and slate floors from scratches. The wheels glide quietly, making them perfect for offices, gaming setups, and home spaces. Installation is tool‑free and plug‑and‑play for quick replacement. The 7/16" × 7/8" stem fits most standard office chairs (not compatible with IKEA chairs).