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SKU: 111MMM1011. Brand: 3M. Tag: .

3M™ Pinlock Headgear H4
– Pinlock closing adjusts from size 6-1/2″ to 8″ in 1/8″ increments.
– High-strength thermoplastic crown.
– Provides impact resistance over a wide range of temperatures.
– No snaps, bands, or cams. Easy window replacement.
– Five position crown strap for additional support and comfort.
Standard :
Meets ANSI Z87.1-2003

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