Mack's Ear Seals Dual Purpose Earplugs Mack's Ear Seals Earplugs have an innovative dual purpose; they seal out noise as well as water. Mack's Ear Seals Earplugs seal out noise with a Noise Reduction Rating of 27d B
- the highest ever for a flanged earplug. The two, super soft plastics used in the molding process allow for ease of insertion & unmatched comfort. Mack's Ear Seals Earplugs come with a detachable cord, allowing you to conveniently hang the earplugs around your neck in environments where noise comes & goes. The cord can be quickly & easily removed for water activities. Mack's Ear Seals Earplugs are washable & reuseable, & include a shatterproof carrying case. They are perfect for: Clubbers Musicians Concerts Motor Racing Shooting Power Tools Swimming Showering/ Bathing Water Sports Directions Reach over head & gently pull up & back on outer ear to straighten ear canal. With opposite h&, grasp earplug stem & insert by pressing forward in a circular motion to form airtight seal. To remove earplug: remove slowly with twisting motion to gradually break the seal. Rapid removal may damage eardrum. Cautions Do not use for scuba diving or at depths over 10 feet. Do not use for sleeping. Do not pull cord to remove from ear. Remove cord from earplugs (with firm tug) before using for water activities or where there is a risk that it may get caught up during use.