24''(60Cm) Office Chair Base Replacement, Heavy Duty Chair, Matte Black Product Features ??Universal Size?This 24'' office chair replacement base is suitable for most of the market including Herman Miller (office chair, study chair, desk chair, vanity chair). Casters: 7/16 inches x 7/8 inches (11 mm x 22 mm) and gas cylinder 2 inches (5 cm). ??High-quality Craft Materials?Sytopia upgraded office chair base replacement features high-quality chrome construction for enhanced durability. It offers an impressive carrying capacity of 2600 lbs and has ANSI and BIFMA certification. ??Safety and Scratch Prevention?Avoid unstable gravity and floor scratches caused by improper height. Our chair base replacement ensures low gravity, stability, and safety, preventing scratches and saving you the expense of buying a new chair. ??Save on Budget?Save money by opting for a chair base replacement, costing just 1/5 of buying a new chair, as long as your seat is still in good condition. Preserve your favorite chair and stay within your budget. ??Risk-Free Purchase?Each chair base is meticulously crafted for you. If you're not fully satisfied, our friendly Customer Service is ready to assist. Enjoy a 30-day FREE return/exchange service for any issues. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!