10 pairs 3M Sleep Earplugs Learning Noise Protection Ultra Noise Protection Industrial Protection Mechanical Noise Reduction1100

Chemicals of high concern: None Model: 1100 Brand name: 3M Origin: Mainland China Shelf life: 5 years Material: Polyurethane foam Is it accompanied by instructions: Yes Product includes Earplugs: 1100*10 pairs Earplugs (2 pieces/bag, 1100: 10 pairs/bag) Detailed description Smooth surface, dirt-resistant, more hygienic Earplugs are easy to rub and easy to wear Bullet-shaped design, comfortable fit in the ear canal Soft hypoallergenic polyester foam Nominal noise reduction value (NRR=29 dB SNR=37 dB) Product reminder! 3M noise-proof earplugs remind you that it is recommended to replace the earplugs every 1-3 days, and the specific replacement frequency can be determined according to actual conditions. If the temperature at your receiving location is low, causing the 3M earplugs to harden, please place the earplugs in a warm room to restore the temperature, or use the temperature of your hands to restore them to softness. After the product is restored to softness, it can be worn normally.