Funny how things happen. My home office chair broke so I decided to weld it back up. Guess it got a lil too hot & the mechanism that makes it go up & down is plastic & started melting so I reached to knock it over & lil did I know... it also built up pressure & blew up & hit my arm... bullseye!!! Glad I didn't have my face over it! Chair works great but doesn't go up & down any more! Be careful cause you never know what's gonna happen!
BoB
BoB