If you're looking for a new office chair...
I've been having a hell of a time trying to find a decent office chair, at a decent price. I took a chance on this one, and I just finished putting it together. I don't know how it will hold up, but it feels very nice and very sturdy.
The lumbar support is a separate piece that is attached to the back of the chair, and it's providing great support. This was the selling point for me.
It came with the normal shitty black casters, that would mark up the hardwood floor, so I threw those away and bought rubber casters. The arms will lift to a vertical position so you can tuck the chair further under your desk. It also tilts back if you desire.
I'm just posting this in case you are looking for a new chair, you might want to research this one to see if it might be for you. It also comes in black. 275 pound weight capacity. About $180 for the chair, about $40 for the casters. Pics and links below.
https://www.amazon.com/dp/B07V8ZMFDQ?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
https://www.amazon.com/dp/B01G643EU6?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
= new reply since forum marked as read
Just buy a new one everyday then! 
It's a stool with wheels and a height adjustment bar. It's similar to the stool I was already using, but I broke off one of the wheels a few nights ago. It still does the job, but I don't think it will last much longer. I'll keep it as a spare. I got the new one for around $36 with tax at Amazon. Hope it holds up!
Your new chair looks comfy. Hope it lasts a long time! 
Very nice!
Happy back and butt, happy life!
