The base is made of high-quality aluminum alloy, and the surface is polished. The design to reinforce the base. The load capacity is stronger, and it can withstand up to 2500LBS, which meets the highest industry standards of office chairs (BIFMA and ANSI)The article is durable and resistant to deformation. We will take every necessary step to keep our customer in the highly satisfied with uncompressed quality.The base of the office chair is suitable for most chairs on the market (office chair, game chair, office chair, executive chair). Casters 7/16 inches x 7/8 inches (11 mm x 22 mm) and gas cylinder 2 inches (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.Instead of wasting painstakingly on a brand-new chair if the base of your chair is bent, shattered, or crushed, save money by buying our sturdy aluminum or iron five-legged chair bases replacements heavy duty! We are a manufacturer and we will provide you with the most affordable price that can save you the most.We have a team of professional designers who are able to provide product customization services. We are confident in providing personalized solutions that satisfy any of our clients' objectives effectively and cost-effectively because to our extensive expertise dealing with a wide range of clients.