GMS Optical contoured nose pads are perfect for plastic frames and sunglasses. They add comfort and durability to extend the life of your glasses. Add comfort to your plastic frames or transform inexpensive glasses into what feels like a higher quality frame. Adhesive nose pads are prime for cheap sunglasses bought at the gas station when you are heading to the beach or out for a BBQ. They are easy to apply. Start off by washing your hands and cleaning the nose bridge of your glasses thoroughly. You can use soap and warm water but we recommend using an alcohol cleaner. This is to create a better surface for the adhesive to cling to. Once applied, the nose pads should stay on your glasses for a few weeks. If you are very active or live in a harsh climate the adhesive might wear off sooner due to sweat or the humidity.