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I use a DX racer clone. I think it was around $150 on Amazon. My son has a DX Racer and I think mine is actually a much better chair. Here is something really close. https://www.amazon.com/Gaming-Computer-Footrest-Office-Chairs/dp/B06XKZJPDN?th=1 . I have had it for two years and it still looks brand new. I did add gel arm pads that slip over https://www.amazon.com/gp/product/B01M8F9IYC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 and recently a $20 "as seen on TV" seat cushion. Even before the pads and cushion it was IMO a better chair. If I ever replace the biggest thing to look for is a well built roller setup and core. I am not worried about the cushion or the arms because the aftermarket ones put all the factory ones to shame!
Here is the $60 glass chairmat which is awesome - https://www.officesupply.com/furniture/chairs-chair-mats-accessories/chair-mats/hard-floor-chair-mats/lorell-tempered-glass-chairmat/p686736.html?q=lorell%20tempered%20glass%20chairmat