Universal Base SizeCompatible with most office, desk, and vanity chairsincluding Herman Millerthis 28" base features a 3.8" height, 2" gas cylinder hole, and standard 7/16" x 7/8" caster sockets. Total height with wheels: 7.5". Please confirm measurements before purchase. Effortless Glide & Floor-friendlyUpgrade your chair with whisper-quiet wheels that glide effortlessly across all surfacestile, hardwood, carpet, and more. Enjoy smooth, noise-free movement at home or in the office without damaging your floors. High-quality Craft MaterialsMade of high-quality chrome-plated metal, the Sytopia base is built to last. Certified by ANSI and BIFMA, it supports up to 2600 lbs, offering unmatched strength, stability, and long-term durability. Budget-Friendly FixNo need to buy a new chairjust replace the base and wheels for a fraction of the cost. A smart way to save money and keep using the chair you love. Hassle-Free, Risk-Free PurchaseEach ch