Don't think that is the right term for what I am trying to say but hopefully someone can put me right. Basically it is a sanding disc for a sander/polisher with 4 independently rotating smaller discs and I don't know what to call it. Would be really grateful for any tips...
Are you talking about a floor machine or a hand held?
There is a four head floor sander/polisher called the predator.
I have seen hand held polishers with 2 heads - cyclo makes one.
There are others also.
Try searching for a planetary sander/polisher