Preffered Plus foam earplugs compare to flentsThis ear plugs for swimmers. Also offers a large assortment of for ear protection, sleeping, swimming, shooting and safety. Secure fit seals out water. Ideal for swimming or showering. Special inserter with each pair. Reduces noise. In plastic storage case.Slide inserter tube over stem of ear plug. Reach over your head and pull ear canal. Push ear plug into ear canal until a good seal is achieved. Remove inserter and repeat on other side.Not recommended for water depths over 8 feet.