It is a Random Orbital Polisher that oscilates instead of spinning on and axis. It is use to polish paint but without the fear of burning or causing more damage that a rotory can do in the wrong hands. It is safe for beginners and enthusiast. Only downside is that it takes a lot longer to remove defects than a rotory polisher would take.

I am skilled with the rotory, but even after polishing with the lightest of polishes, I tend to have some faint holograming here and there. Lately I have been following all my swirl removals with the PC to ensure that no holograming is left on the paint.