About this item

• ¡¼Adjustable Height up to 7.6 inches¡½Our fully chair piston offers a stroke length of 7.6 inches, giving your chairs a boost of up to 22.4 inches (57cm) when fully expanded. Please remember to measure the length of your outer cylinder before purchase.
• ¡¼Universal Fit for Most Chairs¡½Our pneumatic piston cylinder has an outer cylinder diameter of 2 inches (5 cm) for the base and an inner cylinder diameter of 1.1 inches (2.8 cm) for the chair lift, making it compatible with almost every office chair on the market, including the Herman Miller Aeron. Please confirm these measurements before making a purchase.
• ¡¼Upgraded Class 4 Gas Cylinder¡½Made of high-quality steel and meeting industry standards (BIFMA/ANSI), our heavy-duty gas lift cylinder has a maximum capacity of up to 1000 LBs.
• ¡¼Eliminate Sinking Concerns¡½Say goodbye to sinking chairs! Simply remove your old cylinder using a hammer or wrench and replace it with our easy-to-assemble cylinder for seamless 360-degree rotation.
• ¡¼100% Satisfaction Guaranteed¡½At Mastery Mart, we stand by our products. If you have any issues with using our replacement chair shock, please contact us for guidance, replacements, or refunds. Your satisfaction is our priority.