If you suffer from ear pressure pain or discomfort as the result of altitude changes while flying on airplanes, Mack's Flightguard Airplane Pressure Relief Earplugs are your natural, drug-free solution. Lab tested, flight-tested and Frequent Flyer approved, Mack's Flightguard features an open-flow Aero Filter technology system, proven to help regulate and ease ear pain and pressure from altitude air pressure changes. The special open-flow ceramic filter guards sensitive ears from pain and discomfort from takeoff to landing, ensuring your next flight is a comfortable one. In-flight tests performed with Frequent Flyers proved that consumers found Mack's Flightguard to be a better option than other airplane ear plugs they have used and that they would recommend Flightguard to others. Flightguard is designed with high quality, ultra-soft, flexible silicone for extreme comfort during long flights and a firm, easy-to-grip stem for easy insertion and removal. These travel earplugs are washable and reusable and include a convenient storage case. Passenger cabin noise from airplane engines, crying babies and chatty neighbours can be a real nuisance and even harmful to your hearing. Mack's Flightguard Airplane Pressure Relief Earplugs have a high 26 decibel noise reduction rating (NRR), so you can enjoy a good book, concentrate on a project, or just simply relax.