Mack’s Aqua Block Earplugs are designed with high quality ultra soft super flexible silicone for extreme comfort and water protection as well as an easy-to-grip stem for easy insertion and removal. AquaBlock Ear Plugs are perfect for keeping water out of your ears during surfing showering kayaking rafting snorkeling and bathing. Doctor recommended Mack’s AquaBlock Earplugs help prevent swimmer s ear infections (otitis externa) and surfer s ear (exostosis). High quality durable carrying case included for on-the-go convenience. Keeps your earplugs clean and protects them from dust and general wear & tear. Hit the shower waves or pool with confidence with Mack’s AquaBlock Earplugs the best waterproof ear plugs.