Review on MySit 5.5" Office Chair Gas Lift Cylinder Heavy Duty Replacement Parts - 450Lbs Long Stroke Hydraulic Pneumatic Shock Piston Universal Size Fits Most Executive Chairs, Gaming Chair, Class 4 by Carrie Robinson

We've had one Office Depot purchased office chair that had been unusable for 5 years (it had a split cylinder tube resulting from my tall son leaning back in the chair too much}, but I couldn't bring myself to take it to the landfill as the upholstery was still in great shape. Back then there weren't the youtube tutorials there are now. Office Depot customer service was worse than useless, told me to contact the manufacturer who of course doesn't exist any more. A month ago I saw some great tutorials and decided I could tackle this myself after all. This was so easy to repair, I'm kicking myself for not doing it sooner.