3 flexible “spring-like” bands to provide 50% more tensile strength to lift open your nostrils for more airflow 2 flexible “spring-like” bands to lift open your nostrils for more airflow 2 flexible “spring-like” bands to lift open your nostrils for more airflow 3 flexible “spring-like” bands to provide 50% more tensile strength to lift open your nostrils for more airflow