Radians Custom Molded Earplugs are an easy, do-it-yourself kit, molds in 10 min. Dozens of everyday uses including shooting sports, sporting events, construction, lawn care, assembly lines, farming, auto races, swimming, flying, factories and much more. Features: Molds in 10 min Soft, permanent custom fit No mess All day comfort Simple, easy to follow instructions Safe, non toxic and hypo-allergenic silicone Environmentally friendly hearing protection Long lasting and washable Made in the USA NRR 26 dB