If you're handy around vehicles and wanted to try your hand and changing your own brakes and rotors this kit makes it a little easier. Also includes a breaker bar if you need to change your callipers and have a suborn bolt that just won't come off. And an impact driver. The kit part is mostly for the rear brakes.
Check out Youtube for any number of folks switching out their brakes and you see most of these tools in action.
For good quality economically priced brakes and rotors I generally go with Max brakes sold on Amazon. Best of luck!