Premium Earmuffs 30dB 6130 1pc

The unique cup structure and sound-absorbing material provide excellent sound insulation. The large soft cushion and ribbed open air headband make it comfortable to wear. Suitable for noise reduction in engines, boilers and metalworking. Noise Reduction Rating (NRR): 30dB - Weight(g):355 Material: Earmuff cups: ABS resin, headband: POM (polyacetal), steel, cushion: EVA (vinyl acetate), sound-absorbing material: PU (polyurethane) JIS T8161EM compliant MRI room cannot be used