Inexpensive if you already have Ryobi batteries and works really well at polishing or buffing small stuff. I used it to clean up plastic headlights on the car before covering in film and they came out superbly.

I have a Milwaukee 3 inch polisher sander and this Ryobi works just as well plus it has a built-in light on it

Runs all my other Ryobi batteries and is the only polisher that runs on 18V that I have had. I also have had a Milwaukee 12V polisher just like this and this 18V definietely has longer life and more power than it, and it is cheaper.