Tapered Foam Ear Plugs Made from soft energy absorbing polymer foam which compresses & then expands for a perfect fit in the ear canal with the benefit of attached cords to avoid dropping or loss & are visible in use Reduces sound levels to the ear drum while maintaining aural contact SNR 29d B Simplified Noise Level Reduction SNR the number of decibels reduced by the product Easy insertion & removal Conforms to EN35221993 Five pairs per pack