these are pretty good.  I'm going to buy them again.
I first wrote a very negative review because i felt that these were too thin. They do have a sticky feel which keeps them from slipping, which makes it work..  After using them for awhile, i've got to say that these are better than the other kind that I bought.  These do have a slight disadvantage that the backer paper is a little hard to remove, but it does eventually come off fine.  The adhesive sticks great, which was a problem with the other ones I bought.  All in all, they do the job, they stick to the glasses much better than the other ones, and i am definitely going to buy them again.  The price is right and you get a larger number of pads than in comparable products.  I hope you will try them.
Rating: 5 stars