• Mack's AquaBlock pre-molded flanged earplugs are constructed of silicone and designed for super soft, super comfortable, waterproof protection.
• Unique Flex Stem and triple flange design allow for a more customized fit, which increases sealing ability and improves wearer comfort
• Pre-molded silicone will not deteriorate like similar earplugs made of plastic
• Helps prevent swimmer's ear and surfer's ear
• Washable and reusable for extended wear
• Carrying case included