Do not use this company that sells inferior stickers that cannot be removed from the backing, I purchased a lip reading sticker to put on my mask to alert people to the fact that I can't hear and the stickers do not come apart from the backing. It cost $20 all up and that is disgusting exploitation of deaf people during a time that we are already frustrated about our ability to communicate with others. The stickers are too large to stick on a mask
Edit: red bubble fully refunded cost when I complained, so I have edited this review. Don't buy the stickers but the company seems solid