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Active ingredient: Calcium Carbonate 420 mg chewable tablets
resealable bags
Rectangular and delta style corner pockets are made of polycarbonate plastic for durability
Durable steel cabinets are rust resistant
27NRR Blackhawk Over-the-Head Earmuffs 5" Safety Active ingredient: Calcium Carbonate 420High performing, dielectric earmuff. Three position model allows for user adjustment. Specialized, high density foam head pad and Soft Seal ear cushions. Independently tested to a 27 NRR (over the head). Product Overview Blackhawk 27NRR Over the Head Earmuffs High performing, dielectric earmuff Three position model allows for user adjustment Specialized, high density foam head pad and Soft Seal ear cushions Independently tested to a 27 NRR (over the