If you play hard, your gear is going to wear our, get torn up, or even get broken.  Sometimes you are going to need to replace parts.  These replacement grey xbox thumb sticks will do the trick and get you back to your game.  If you have a wireless controller, you're in luck:  We include a T8 L Key with a hole in it, to help you disassemble your controller.  But, if you have a wired controller you need a standard Philips screwdriver (+), which you will have to provide.