Surefire, Sonic Defender 5, Ear Plug, Medium, Black, 25 Pairs NEW WARNING Warning WARNING CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemical(s) known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov/product. 26dB Noise Reduction Rating Patented EarLock Retention Rings Hypoallergenic, Medical-Grade Polymer 25 Pairs, Bulk Package Product Description SureFire earplugs were developed to protect military and law enforcement personnel from harmful sounds. In addition to offering protection, these filtered earplugs allow normal conversations to pass through. SureFire earplugs feature patented EarLock retention rings that provide a secure fit and all-day comfort.