When I bought these I was hoping for the sharper version of this one they make as I had kept one from a music store after using it and wanted some more after the store made me stop keeping them when I took the whole jar.  I have since gotten used to these and will probably get them again if I ever run out.  They show up everywhere, so I don't think I'll run out any time soon. I can't with certainty say that there were 72 in the package; I was trying to count them when they arrived but I was doing a math test at the same time and kept losing my place.