1 pair of ear plugs with cord and case (ce), the reusable, reusable, corded ear protection ear plugs are designed for brief but recurring exposure to high level noise pollution. they have a snr attenuation value of 33 db (h 33 db/m 31 db/l 29 db). this makes them perfect for use in heavy construction machinery work. thanks to the practical lanyard, the ear protection earplugs can be hung around the neck for quick availability. the ear protection plugs are made of soft thermoplastic material and offer a high level of comfort. the universal fit in diameters from 8 to 10 mm and the four lamellae allow for optimal closure of the ear canal. the product is supplied in a transparent plastic box in which it can be stored hygienically. the hearing protection complies with the requirements of en 352