You're holding your sunglasses in bag without their case so you're always having trouble finding them in that creative chaos? Or you're throwing away your bag unwary and your glasses usually get broken or scratched? This folding design gives you the ability to wear them around your wrist, steering wheel, bicycle ...
This one is best suitable for kids. There's not much to it, just throw it on the floor and it starts jumping around. It can be a great toy for your cat/dog too. They will, hopefully, chase it while it jumps around and make everyone laugh.