The green ones are 96-105 grit.
These are typically for household applications, although they'll work - but they are a little course.
I recommended the MED CUT MMM 7447 Maroon pads.
LINK
The FINE CUT gray ones ::
The MED-FINE CUT red ones are a little more course::
There's also some white ones, which I have never seen nor needed. They are very fine like the gold ones which I also have never needed.
Use the green ones if you like, but you will have to be very careful.
Like I say::: use what you think is correct.