Not durable!
I bought these mainly for my kids to use at school and they ended up being more of a hassle than the mask. The "clips" aren't really clips to hold the mask. There's just a small opening that they'll slide into....but also slide out of. One of the metal ends that holds the clip came off the first day. My kids don't use them anymore. After the first few days, they were more frustrated with these than the actual mask.
Rating: 2 stars