I have an older model (~8 years) and one of the wheelbase arms broke off. DXRacer was responsive to my email question and told me which base would work with my model. If you're looking for parts, the links can be found in the FAQ question: "If my chair's warranty has expired and I need to purchase corresponding parts, what should I do?"

Chair feels very sturdy and is very helpful for my posture. Construction was straightforward and the instructions were easy to follow. Glad I have a Secret Lab quality chair without paying Secret Lab prices.

It's so humanized, like, you can adjust it in all these different positions to find your perfect comfort zone. As a gamer and YouTube enthusiast, I like the comfortable chair. It's worth to buy.