I bought this to replace it in a gamer chair on SALE which had a bad quality base made of some mix plastic and which broke in half after some months........this base si metal and sturdy (notice you have to buy or keep the WHEELS because this does not come in the package, thankfully all measures are standard and they are interchangeable)
With some extra $$$, I turned a sale price chair, into an excellent quality chair. Totally recommended!
Niko 
