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3M Peltor Optime III Ear Defenders Adults – Protective Earmuffs with Headband, Hearing Protection Against High Noise Levels in Industrial Settings, 35 dB, Black/Red : Amazon.co.uk: DIY & Tools
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3M™ PELTOR™ Optime™ III Headband Format Earmuff H540A, Black and Red, SLC₈₀ 33dB (Class 5), 10 ea/Case | 3M Australia
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