6 Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Parts, Heavy Duty 450Lbs New Pneumatic Cylinder, Gas Cylinder, Class 4, Ref Code 1B08VM B/C (Pin Type). 2 x 2 x 16 inches; 3.66 Pounds. CLASS 4 LEVEL GAS LIFT CYLINDER — This heavy duty gas lift cylinder made with high construction industry standard (BIFMA Plus Qaulity) for Herman Miller Aeron Chair cylinder, ref code 1B08VM B/C. ADJUSTABLE HEIGHT 6 INCH — Adjustable Height 6 Inch, the fully expanded height is 16 inch, the fully compressed height is 9.9 inch. Please Check the production date under seat of the chair. DIAMETER — small black tube diameter: 1.1″ (28mm), middle chrome tube diameter 1.3″ (33mm), outside big black column diameter: 2 (50mm). PARTS FOR HERMAN MILLER AERON CHAIR — Please check the cylinder by opening the mechanism box under seat before purchasing. If the Cylinder has a cable plastic actuator on the top of the cylinder that this version will workable. If the Cylinder has a cable pin hook on the top of the cylinder that this version won’t workable, please reference to other ASIN: B0CCHRNT4F. Heavy Duty 450lbs New Pneumatic Cylinder Class 4. 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.