Great kit to replace your broken analog stick on your joycon. For this price you get 2 analog spare parts and all the necessary tools to open and replace the analog stick. Replacement analog joysticks will work with any joystick, so it doesn't matter if they're unmarked. I used to replace the right analog stick with a green stick that I bought on sale at Wal-Mart. The representative didn't tell me what's wrong with it but he said I have 14 days to return it. When I opened the box, I found that the green joystick had a completely broken wand. Googled for a replacement and found this kit. The cost of this kit and the 50% off Joymins was still cheaper than buying a used set of Joymins so I gave it a try. dismantle and run. Luckily there are extra screws (Y and Phillips) included in the kit in case you rip them off completely. After the replacement, I feel the difference of the new analog compared to the non-replaced one. It is definitely reliable and calibrated without any issues. I was almost tempted to replace the other one, but will keep it in case I have a complete breakdown in the future. All in all, I highly recommend this set. It comes with all the necessary tools, extra screws and rubber thumb pads that can be added for the control sticks.