well I had an old office chair from about 30 years ago I have used for my sewing chair. It has 4 legs, at the bottom, (now they make them with 5) which I did NOT want, as just one more leg to get in the way of my foot peddle.
It has casters to roll where ever I want it to go, and it has adjustable seat and back. Black.
When we moved here and I had to go to the court house to pay taxs and reg, to vote I noticed the chairs, JUST like mine.(only done in brown) told the clerk if they got new chairs I wanted to buy the old ones. Long story short, got them this Feb. at auction, all 7 for $15, and they even gave me a paper shreader! Love my chairs!!!