It's a different sort of glasses dangler - this isn't one of my glasses dangler spec chain things - this is jewellery for your eyewear!
Look how dangley this is!
I have quite a lot of them...
All the enamel charms are attached to adjustable rubber loops, so they should fit pretty much any size glasses.
What I don't know is whether or not they'd drive people up the wall with the dangling...