Mack's kids size moldable silicone earsplugs, the ultimate in earplug comfort, Mack's silicone putty moulds to the unique contours of any ear. Doctor recommended to: Seal out water Help prevent swimmer's ear and surfer's ear Provide protection after ear surgeries Help relieve flying discomfort Protect hearing from loud noises Provide non-toxic, hypoallergenic protection Provides a better, more comfortable fit and seal than custom ear plugs Mack's are larger and safer than other kid's size earplugs. Recommended for kid's 6 years old and under Bright colour is fun for kids and easy for parents to see Plastic carrying case included