Review (5/5): Good Brackets/Spacers
The face mask brackets/spacers are not made of silicone. Theyre not stretchy at all. The only reason theyre bendable is because they're thin.
However, they work. They are comfortable. They stay in place when a mask is over them. I like them--especially at this price. They make breathing easier. They can't stretch so if your face is much larger than mine, they won't fit.