To use them you have to pry off the back of the handles (the blue tool is useless for this) and then unscrew the 5 screws on the back (2 in each handle and one hidden screw under the indication sticker in the battery compartment ). A screwdriver is handy if you don't already have a Torx screwdriver. Enough parts for two controllers. $12 is a bit pricey, but it's a vanity thing. It will not help your controller perform better. It's easy for you to enjoy.
Microsoft Xbox Wireless Controller Adapter for Windows 10 Black
25 Review
TV tuner Selenga HD980D black
37 Review
Game console Microsoft Xbox One S All Digital 1024 GB HDD, white
23 Review
Sennheiser GSP 302 Gaming Headset: Noise-Cancelling Mic, Flip-to-Mute, Memory Foam Pads, for PC, Mac, Xbox One, PS4, Nintendo Switch, Smartphones
23 Review