New Pneumatic Gas Cylinder Lift for Herman Miller Aeron Chair Part #7 1B65LR. Global Trade Identification Number. 11.42 x 1.97 x 1.97 inches. Listing is for a brand new never used CLASS 4 WITH 400N, office chair seat height adjustment pneumatic gas lift cylinder. 6.0 stroke (seat travel from lowest to highest settings). Samhongsa production, same the original gas lift size, perfect. Exceeds ANSI/BIFMA5.1-2011 standards, based on the specs of this cylinder, it’s load capacity is 350 pounds. Cylinder Diameter: 28mm (1.1″) Column Diameter: 50mm (approx 2″). Cable Actuator for Hermanmiller classic Aeron chair. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.