Swimming Earplug,Nogis Swimming Surfing Earplugs Keep Water out Let Sound in for Swimmer Surfer Lock water out, protection from water entering the ears. Let sound in, allows you to hear what people say. Simple design allows you to put in and out your ears easily. Soft silicone will not hurt your ears.With small/middle/large size, there is at least one size fit your ears. A great gift for friends and families.