Is it possible to re-seal my rise and fall kitchen/bar stools. unless I stand up straight as opposed to leaning forward to get off my stools, they raise to the top over about 5 minutes. This is very annoying if for instance I have slid it under my centre island. By the time I get back , it is stuck solid.
there isn`t a makers name on it, but I can provide a photo if ned be.

Alan MacTaggart, January 2018