I love these clips. They work very well on the Tub mask but also on other makes of mask as well. The makers of Tub Masks are very innovative and their mask are some of the best. They are continually improving their product. I’ve been wearing them for over a year and use them every day. I would highly recommend them!
Works great for preventing fog on glasses.
I bought these as spares as they eventually broke down with my last purchase of masks
Th she strips work great. I wish they were also available in white or light blue. I don't always want to feel like a football player. I also find that they don't work as well on my cloth masks.