【packing】:1pair/box,10pair/case

For noise levels up to 101 dBA, these behind-the-head earmuffs provide effective hearing protection. 

• Stainless steel band distributes weight for low-pressure fit.
• Earcup pivot points that tilt for optimum comfort and efficiency.
• Liquid/foam filled earmuff cushions.
• Color-coding for compliance sighting.
• Noise Reduction Rating (NRR)*: 26 dB. CSA Class A. 
  
  *The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided. 
  
  3M is Leading the Advancement of Hearing Conservation™.