This video shows you how to install it.
Here is what the changer can give you:
Stat Trak Module
Download it from here.
All the functions of the software:
The software is undetectable - don't worry. You won't get banned.
It has every single skin in the game. You can swap your gloves or even knifes!
You can add any sticker to your weapon.
There is also an option, which adds the Stat Trak module to your weapon.
Unfortunately, the software works only for you. Other players won't see your skins. But the changer is perfect for videos!