Durable and lightweight, Model 1000 earmuffs are constructed of non-conductive, dielectric plastic and can be worn over-the-head, behind-the-neck or under-the-chin. The large ear cup openings and soft, foam-filled cushionsoffer a snug, comfortable fit. NRR: 20 dB when the band is worn over-the-head, and NRR: 22 dB when the band is worn under-the-chin or behind-the-head. 24 pair/case.
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