Office Chair Base Replacement Parts - Reinforced Sturdy Metal Leg Desk Chair Base Replacement (2500Lbs),Universal Gas Cylinder and Caster Sockets 26"The surface of the base has also been polished and it is comprised of a fine aluminum alloy. The design to reinforce the base. The capacity is greater and can sustain loads of up to 2500 lbs.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.Aluminum chair base light but strong. All base passed SGS Drop test - Dynamic and Base Test- Static of ANSI/BIFMA X5.1-207. Not rusting and durable.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 offer for customizable foundation color. Chrome, coated, brushed, polished, and etc.Instead of spending painstakingly on a brand-new chair if the base of your chair is bent, fractured, or crushed, save money by buying our sturdy aluminum or iron five-legged chair bottom replacement 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 tailored solutions that satisfy any of our clients' requirements effectively and efficiently because to our extensive expertise dealing with a wide variety of clients.