There were two Xbox One S controllers with broken joysticks. I figured I'd try and just swap out a good stick for a better controller, but figured having two working controllers would be better (obviously). I bought these as others had what seemed like terrible reviews, they appear to be OEM, even the colors are an exact match to the original. The video they link to is very well done and straight forward, although I haven't bothered to calibrate mine as it's used on a PC. It turned out that both of the substitutions I made were near perfect and in a dead zone. For both controllers it took me about two hours to complete using the exact same tools shown in the video linked in the box and almost no soldering experience. Now I have 4 spare racquets too, fantastic deal and great quality. I would 100% recommend it to anyone with racquet problems.