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Howard Leight AS1 [ HOWAS1 ]: Airsoft Reusable Air Cushioned Earplugs. Advanced air pocket design features internal noise-blocking fins. Four-flange profile creates better seal in the ear canal. Less pressure in the ear canal eliminates that plugged up feeling. Rounded flanges, tapered shape fits better in the ear canal. Firm stem facilitates easy insertion & removal. Body Material: TPE; Color: Blue; Noise Reduction Rate (NRR): 27 dB; Packing Type: Impact Case; Quantity: 50 pair per box; Type: Uncorded; Weight: 0.02 lb. ..