They are abrasive pads similar to synergy,twister,cps,norton,and monkey pads.
There are plenty out there with different types of compositions.
There arent many that can polish stone as consistently as resin diamonds and acidic polishing compounds. For us the vortex pads work well for producing various levels of honed finishes
and are agressive enough to remove etching and scratching using their lower grit pads.
They also reduce pictures frames. I use the word reduce because each floor can have its own issues with regard to lippage.
Nothing fancy here just a good tool for a refinisher to use to speed a job up and obtain predictable results.
For polishing I wouldnt recommend them. However we can use the lower grit pads on a job and finish with diamond resin pads and polishing compounds to deliver a highly polished uniform surface.