MOS Reference: Disposable polyurethane foam ear plugs with a noise reduction rating (NRR) of 32dB for reliable hearing protection in high-noise environments. Slow-recovery foam compresses for easy insertion and expands to conform to the unique shape of each ear canal, creating an effective acoustic seal. Smooth, soil-resistant skin resists buildup in dirty work environments. Individually wrapped pairs maintain hygiene in shared dispensing stations. Ideal for use around power tools, heavy machinery, and manufacturing equipment.