-. Brand : 3M
-. Feature : Three-position earmuff can be worn over-the-head, behind-the-head or under-the-chin / Includes crown strap required for under-the-chin or behind-the-head wear / Lightweight, durable plastic construction is non-conductive / Features large earcup openings with soft, foam-filled cushions, replaceable foam cup liners and take-apart assembly / NRR 20 (over-the-head), NRR 22 (under-the-chin) and (behind-the-head)
-. Label : 3M
-. Manufacturer : 3M
-. MPN : R3-665570081
-. NumberOfItems : 1
-. PartNumber : R3-665570081
-. ProductGroup : BISS
-. ProductTypeName : LAB_SUPPLY
-. Publisher : 3M
-. Studio : 3M
-. Title : 3MTM Model 1000 Earmuffs - Model 1000 multi-position earmuffs (8 Packs) - R3-330-3001