ASHGOOB 3 Inch Office Chair Wheels Set of 20, Heavy Duty Replacement Casters for Hardwood Floor & Carpet, Smooth Quiet Roll, Universal 11mm Stem, Non-Marking PU Wheels (Green 20 Pack)

["Universal Fit for 99% of Standard Office Chairs – IKEA Not Compatible The stem measures a standard 7/16\" (11mm) diameter x 7/8\" (22mm) long – the industry standard for most office chairs in the US. Important: These do NOT fit IKEA chairs, which use a smaller proprietary stem size. For a perfect fit, measure the old casters before ordering.","650 lbs Heavy Duty Capacity – Based on 5 Casters Per Chair Most office chairs use 5 casters. Each of our casters supports up to 130 lbs, giving a total capacity of 650 lbs for a full set of 5 wheels. For larger packs (10/15/20/25/30), simply divide the total count by 5 to get the number of full chair sets. Built with heat-treated steel frames, precision 2-ball bearings, and durable polyurethane (PU) tread. Ideal for executive chairs, gaming chairs, home office setups, and users of all sizes.","Whisper-Quiet Rolling – No More Noisy Distractions The 3-inch elastic PU wheels absorb vibration and roll quietly across any surface. Precision ball bearings eliminate friction noise – noticeably quieter than standard hard plastic casters. Perfect for late-night work, shared offices, or homes with sleeping children.","Safe for All Floor Types – Ditch the Chair Mat The soft, non-marking polyurethane tread will not scratch or scuff floors. Works on hardwood, laminate, vinyl, tile, stone, and low-pile carpet. The 3-inch diameter rolls over carpet fibers more easily than standard 2-inch wheels – no more getting stuck on rug edges.","30-Second Tool-Free Installation – No Handyman Needed Pull out old casters (a firm tug usually works), then push in new ones until the stem clicks into place. Zero tools required. Compatibility note: Works with chairs that have a standard stem socket (not threaded or screw-in bases)."]