Face Mask Strap

I designed this face mask holder / strap in 4 sizes: 72mm, 85mm, 100mm, and 115mm. I uploaded all four sizes but if you take the 100mm design and change the scale size in the length by +-15%, this should do you well. I've designed a few of these mask holders and I found this one to be the most comfortable and easy to use of them all. The tension of the mask elastic can be adjusted on the other designs I uploaded but that's why I made 4 sizes of this design. I hope this does the trick for you. As always, stay safe and healthy. Miguel