Mack's Shooters Moldable Silicone Putty Earplugs mould to unique contours of any ear, forming a perfect, extremely comfortable, custom fit when applied to the outer ear canal. The tacky putty forms an airtight seal that no other hearing protection can match and much less expensive, more convenient, and easier to use than custom moulded plugs. Includes storage case. Perfect for tactical training, hunting, target shooting, loud events and much more. Noise Reduction Rating: 22 dB. Package of 3 pairs.