Turns out I gave bad info. I got them on AliExpress from China, not ebay. Here is a link to a similar product. These are not the exact ones I got but probably bettet than the ones I got since the grit is finer on the coarser sideDid you write "fingernail buffing pads" on ebay?
I'm not getting any results, I'm curious to look into them
Remember that "50" is really 250 since they break off into 5 little ones per pad. One pad is enough to do a guitar unless the frets are really dirty. The pad is toast when done but it does still clean the 22nd fret. I have about 17 guitars and I am pretty sure the ones I bought will be a near lifetime supply (I think I bought a 200 pack--so that is really 1000 little ones). I seriously seriously doubt I will polish the frets 1000 times in the rest of my life. Possible. Just unlikely