This Review Title is Not worth the money. Awkward shape, doesn't fit in masks and the content is: These do not fit correctly in any size mask. We tried them from small to large. They made it so the nose Bridge of the mask sits out too much and doesn't cover. Great in theory, but not in product..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.