Self Adhesive - has an adhesive backing that can be peeled off and applied to your mask.
Flexible - Made of solid flat aluminum which is flexible and light. It can be bent easily to fit for your nose bridge to get optimal comfort.
Universal - Nose bridge strips can be used for masks made of different fabrics and sizes.
Usage - Nose strips may fall off in washing due to adhesive backing being strong but not too strong that you can't remove it from your mask and risk damaging your mask. You may need to apply a new nose strip after each washing.