Mack's Aqua Block violet Earplugs Mack's Aqua Block Earplugs keep the water out to help prevent swimmer's ear & are ideal for swimming, showering, surfing, bathing, water sports & much more! Made from silicone, Mack's Aqua Block are pre-molded flanged earplugs & are super soft for extreme comfort. Unique Flex Stem & triple flange design allow for a more customized fit, which increases sealing ability & improves wearer comfort. Pre-molded silicone will not deteriorate like similar earplugs made from plastic. Helps prevent swimmer's ear & surfer's ear. Washable & reusable for extended wear. Carrying case included. Suitable for adults & children aged 7 years & older. 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 the earplug, remove slowly with a twisting motion to gradually break the seal. Rapid removal may damage eardrum. Cautions Mack's Aqua Block Earplugs are not recommended for use with ear tubes or by patients recovering for ear surgery unless directed by a doctor. Use Mack's Pillow Soft Silicone Earplugs with ear tubes & for post surgery protection. Do not use for scuba diving or at depths over 10 feet. Use only as directed.