RiYii 8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs

• UPC   723265454547
• Extra Heavy Duty: This gas lift cylinder is class 4 level, heavy duty construction, it can even support up to 450 lbs without fail. Adjustable Height: The height of the hydraulic gas lift cylinder fully compressed is 14.5 ", and the height fully expanded is 22.5". This means that it has an 8-inch adjustable height that allows you to rise higher and use your office chair in more scenarios. Universal Size: This 8" Long Stroke Gas Lift is tall center support column of the chair. Outer cylinder: 2 inches, Inner cylinder: 1. 1 inches. Please measure dimensions before you purchase it. It suitable for most executive office chairs, task chair, office chair, rolling stool, drafting stool, computer chairs. Easy Installation: Can be installed easily with no additional screws required. Usually you may need to use a hammer to take out the old gas lift cylinder and replace it with a new one. (We suggest you search for "gas lift replacement" on youtube for instructions) GUARANTEED: If any problem, please feel free to contact us, we'll provide our advice or solutions. If you don't absolutely enjoy it, we guarantee you that we will reimburse you for 100% of your order.