4 Stars
The hinges were very very stiff when i first pulled them out of the package. I put some wd40 on the hinges and they opened better. But not as easily as the elf pair of sunglasses i bought a few months ago. I was also a little disappointed that the hinges didnt have any outward flex like my elf sunglasses hinges do. Not sure if the hinges have been upgraded over time or why elf has much better hinges on them. Also i wish knockaround would make slime glasses for adults.











