Won’t break
I have myopia and as such, find that the older I get the better I can see close up.  However, since I still need correction for distance, I need to take my glasses off and on many times during the day.  Having a lanyard seemed to be the solution.  I ordered another product from Amazon that was very similar to these Holdies.  I went through three sets of lanyards in just a few months. The part that connected to the temples was leather and quickly broke.  I ordered these retainers because the part connected to the temples was rubber.  Indeed, these are much stronger and don’t look like they will break easily.  I’ve had them less than a month, so time will tell.  But for now, I’m very satisfied with the product.
Rating: 5 stars