Box of 250 pairs of disposable earplugs. The world’s first ear plugs, setting the standard in hearing protection. Superb protection from workplace and background noise – SNR 28. Firm foam design for easy fitting, softens from body heat for a comfortable fit. Provides an excellent seal due to the ‘shaping’ of the earplug to the ear canal. Moisture resistant – can be cleaned and re-used up to 3 times. EN 352-2:2002 tested & certified.