Recommendation: spend a bit more. Get the pads made with real 3M adhesives.  IMPORTANT!
So these would otherwise be fine, if the adhesive would hold up. I would put only one star, however others have already totally trashed this product out of frustration I suppose. The frustration is when the adhesive heats up with one's body heat, it melts. The pads loosen up and worse than that the sticky gooey adhesive gets all over the lenses on your glasses. Additionally, the adhesive does not come off so easy with soap. I am afraid to use anything harsh to remove the goo because it could very well damage the lenses on the glasses. Please do yourself a favor, buy a brand that uses 3M adhesive. The first set of these we got in the optical department at Wally World. They were more money, but well worth it.
Rating: 3 stars