The easiest cleanest earplug in the world to use. NVLAP laboratory tested NRR 25dB, quick, clean, hygienic. slow recovery foam inserts easily, seats and stays in place. Available corded and uncorded in convenient reusable pillow pack to promote reuse. Comes in assorted color grips of red, yellow, green, blue and purple. Comes in handy, wall-mounted dispenser box containing 100 plugs.