3M 311-1101 Classic Earplugs - Corded - NRR 29
Corded for easy short term storage around the neck. Slow recovery, low pressure foam conforms to the shape of the ear canal for enhanced comfort and wearability. Moisture-resistant - helps maintain a consistent expansion time, even in humid environments.
3M™ E-A-R™ Classic™ Earplugs set the standard in hearing protection as the world's first foam earplugs.
Packed: 200 Pairs/Box