【Universal Size】This replacement base is designed to fit a wide range of chairs, including Herman Miller office chairs, gaming chairs, and executive models. It accommodates casters with 7/16″ x 7/8″ (11 mm x 22 mm) stems and gas cylinders with a 2″ (5 cm) diameter.
【Built to Last】Crafted from heavy-duty, chrome-plated metal with a matte finish, this base features a solid tubular iron construction reinforced with screws for exceptional strength. It reliably supports up to 2500 lbs, offering enhanced safety and durability.
【Protect Your Floors & Chair】An improperly sized base can make your chair unstable and damage your flooring. Our design provides a low center of gravity and superior stability to keep your chair secure and prevent scratches—extending the life of your favorite seat.
【An Economical Choice】Don’t replace your entire chair when only the base is worn out. For a fraction of the cost of a new chair, this replacement lets you save money and continue enjoying a seat that’s still perfectly functional.
【Hassle-Free Experience】Installation is straightforward with our clear instructions. We stand behind our product, and if you aren’t completely satisfied or it doesn’t fit, returns are simple and easy.
BrandMASTERY MART
A sleek, contemporary base for the modern office. This solid, round base features a polished, matte black finish with durable tapered legs and a smooth swivel motion. Engineered for performance with a 2200 lb weight capacity and a 28-inch seat height. Crafted from heavy-duty metal for lasting quality, it’s designed for easy installation on hard floors. Simple wipe-clean care.