I ordered it with the removal tool, Very easy,
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Removal and Install was easy, as described. Cylinder functions as expected. My thrifted chair works as good as new!

This did what it needed to do. Sturdy and well-built. You might need to repeat the process a couple of times to get the cylinder out.

My chair has not “held height” upon weight being put on it since a month after I bought from office surplus store. I was having to readjust height all the time. After my husband had “catastrophic failure” of his chair (rod poking through bottom of cylinder), we bought kit with tool from Amazon. After it was so easy and inexpensive to change cylinder with tool, I decided to do the same for my chair. So nice to have not touched adjustment lever since initially getting back to my desk vs. every session.

Chair Cylinder Replacement Kit