SA-7-5 Standard Bullet Shape Foam Ear Plugs
SNR: 38db NRR: 31db
SA-7-4 Bell Shape Slow Rebound Foam Ear Plugs
SNR: 37db
SA-7-2 Cylinder Type Foam Ear Plugs
SNR: 36dB
SA-7-1 Classical Bullet Shape PU Foam Ear Plugs
SNR: 30dB
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