DETECTABLE CORD and EARPLUGS - Metal-detectable earplugs are the ideal method of hearing protection in food manufacturing facilities—and they offer more than just hearing protection. Both PVC cord and ear plugs are detectable. PERFECT NOISE REDUCTION - Foam earplugs provide higher noise reduction than the typical silicone ones making them more effective sound protection. BLUE CORD - Blue is a contrasting color to most food products and is easily seen by the human eye. INDIVIDUALLY WRAPPED - Each pair is sealed in its plastic bag for good sanitation. They are easy to keep at work, in the car, and in bags without getting dirty. SELF-ADJUSTING and COMFORTABLE - Our slow rebound foam ear plugs expand inside your ears for a secure, comfortable fit. Earplugs are super soft and don't rasp the ear canal. EASY TO USE - Easy to roll and insert. An ear plug foam compresses quickly for easy insertion. SOFT and NON-TOXIC FOAM - Made of high-quality, soft, and non-toxic foam so it's safe to use.