The E-A-R Push-Ins earplugs are designed for insertion into the ear canal to help reduce exposure to hazardous levels of noise and loud sound. No roll-down required. Low pressure seal. Insertion stem helps eliminate the need to touch the top when fitting. Ear tip softens and becomes more pliable with body temperature. Wearer comfort increases the longer the product is worn. One size fits majority wearers. Washable and re-useable. Complies to EN352-2:2002. SNR = 38dB, High Frequency = 37dB, Medium Frequency = 36dB, Low Frequency = 34dB.