If you're making fabric masks, these bendable nose bridge bar wires are essential for a good fit. They are comfortable, and are the ones we personally use!
There are made of lightweight aluminum and measure .25" x 3.5".
Can be sewn in but also have an iron-on backing. We recommend sliding them in to the nose bridge flap of your mask. The iron-on adhesive is not particularly strong.
Comes in a pack of 10.