24'' (60 cm) Swivel Chair Base Replacement, Heavy Duty Metal Base (2600 lbs), Fits Most Office Chairs, Compatible with Universal Casters and Gas Cylinders, Shell White đăUniversal SizeăThis 24'' office chair replacement base fits most office chairs on the market, including Herman Miller models (office, study, desk, and vanity chairs). Dimensions: base height â 4.72'' (12 cm); caster sockets â 7/16" x 7/8" (11 mm x 22 mm); gas cylinder â 2'' (5 cm). Note: Base only. Casters and gas lift not included. Not compatible with IKEA chairs. đăPremium Materials & Certified SafetyăMade of high-quality chrome-plated metal, this base supports up to 2600 lbs and meets ANSI/BIFMA standards for strength, stability, and durability. đăStable & Floor-Friendly DesignăEngineered for a low center of gravity, it reduces tipping risk and prevents floor scratchesâkeeping your workspace safe and your floors protected. đăBudget-Friendly SolutionăRestore your chair for just a fraction of the cost of a new one. A great way to extend the life of your favorite seat while staying on budget. đăWhat's in The Boxă1Ă matte black chair base replacement, 1Ă installation kit, 1Ă base cap. đăRisk-Free PurchaseăWe stand behind our product. Enjoy a 30-day free return or exchange and responsive customer support for a worry-free purchase.