Ear Protection NP364 EARPLUG Posted on November 28, 2012 by admin Description NP364 EARPLUG With plastic case & neck string Features NP364 EARPLUG CE EN352-2 ANSI S3.19 (1)TPR material (2)with plastic case & neck string (3)SNR=29dB, NRR=25dB admin NP363 EARPLUG NP36K EARPLUG