Nasal Strips ---Breathe Better. Sleep Better. Feel Better. Material PE, Non-woven cloth and film .Effect 1.Reduce snoring 2.Improve breathing during exercise 3.Provide drug-free relief from nasal congestion. Structure 1)Two flexible "spring-like" pieces gently lift upwards the congested nasal passages so you can breathe through your nose, close your mouth and stop snoring, allowing you and your partner to get a good night's rest. 2)Special adhesive holds the strip comfortably in place. 3)Improves airflow by 31%. Size: 55mm x 16mm Packing: 30 Pieces/Box Shelf life: 3 years. Storage: Store in a cool/dry place.