The surface of the base has been polished, and it is composed of a premium aluminum alloy. the base's reinforcement design. The office chair satisfies the highest industry standards for office chairs thanks to its stronger load capability of up to 2500LBS (BIFMA and ANSI) The item is robust and resistant to deformation. We will make every effort to maintain our customers' high level of uncompressed quality satisfaction.The office chair's foundation works with the majority of chairs on the market (office chair, game chair, office chair, executive chair). Gas cylinder 2 inches and casters 7/16 inches by 7/8 inches (11 mm by 22 mm) (5 cm)We have our own automatic powder coating workshop and can produce different colors and different surface processes according to your requirements.We support customized color of our base. Polished, Chrome, Painting, Brushed and so on.Save money by buying our sturdy aluminum or iron five-legged chair base replacement heavy duty instead of the painful expense of a brand-new chair if the base of your chair is bent, cracked, or damaged! Since we are a manufacturer, we will offer you the most cost-effective price possible.We have a group of qualified designers on staff who can offer services for customizing products. We are confident in providing tailored solutions that achieve any of our clients' objectives effectively and efficiently because to our extensive expertise dealing with a wide range of clients.