The offered Mask Nose Strip is made available by us in various types and is suitable for being used in various types of various masks. These adhesive nose bridge strips help keep my glasses from fogging up. The mask nose bridge strip is made of PVC, which is safe and environmental protective. The single core is made of high quality iron, which can bend freely and maintain its shape. It is a piece of flexible material which lines the top of the mask to allow the mask to be more securely fastened around the nose. The Mask Nose Strip is very efficient and safe for use.