Key features

• •★ EXTRA HEAVY DUTY - Other chair bases that come standard on your office chairs typically bend, crack, or break over time. This one simply won't. With the entire frame made from high strength aluminum, this chair base is as heavy duty as you will find. It will easily hold up to 400 lbs for years and years of extended use.
• •★ UNIVERSAL STANDARD SIZE - This replacement chair base will fit almost every office chair on the market. If it doesn't fit your specific chair, simply return it for a full refund and we'll even cover the cost of shipping for you.  It has the standard 2" (50mm) center hole for gas lift cylinders and standard 7/16" x 7/8" (11mm x 22mm) sockets for chair caster stems.
• •★ STRONG & STURDY BASE - The office chair base is the foundation of every swivel chair, but it often gets overlooked.  The sturdiness and rigidity of your chair base has a direct effect on overall mobility and ergonomics of your office chair. The strength and durability of this chair support will ensure your chair's foundation is ergonomically sound for many years.
• •★ INSTALLATION INSTRUCTIONS INCLUDED - Don't know how to replace your computer chair base?  That's okay, it's actually a very straight forward task.  We've included step-by-step instructions and our customer support team can help guide you through the process.
• •★ 6 YEAR HASSLE-FREE WARRANTY - Our goal is to provide you with the highest quality office chair parts so you can extend the life of your chair.  So if for some reason our chair base bends, cracks, or breaks - email us, and we'll send you a brand new one.  Our warranty lasts for up to 6 years from your purchase date.