Silicone earplugs Use: improve sleep, concentrate, protect hearing and so on. It is a good helper for you to avoid noise interference at home, dormitories, self-study classrooms, travel by ship or plane, factories, construction sites, bustling urban areas, etc. Silicone earplugs are a good partner for your healthy new life, and silicone earplugs are also necessary for you to watch F1 races.