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 product is durable and sturdy,not easy 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 which allows us to create various colors and surface treatments based on your specifications. We enable base color customization. Chrome, coated, brushed, polished, and so forth.Instead of spending significantly on a brand-new chair if the base of your chair is bent, fractured, or damaged, save money by investing in our sturdy aluminum or iron five-legged chair base replacements heavy duty! We are a manufacturer, thus we'll provide you the best deal possible to save you the most money.We have a team of professional designers who are able to provide product customization services. With our vast experience working with diverse clientele, we are confident in delivering customized solutions that meet any of our client’s objectives effectively and efficiently.