Computer Stools Where Can I Get An Extra Tall (24") Computer Chair?

Where can I get an extra tall (24") computer chair? - computer stools

I built a computer in my studio and home is quite high, for some reason. But I can not find a chair in relation to the table. I sit on a chair, now 24 centimeters in height and the height is perfect, but I need to make a backup. I feel a pain as I write this.

All the chairs I've seen are like 17 "-22"

Ideas? Thank you.