From producer Howard Leight Leightning L0F Compact Folding EARMUFF. Ultra-light just 40 grams pavilions are stylish and extremely thin. The strip quilted and super soft cushions provide all the comforts of days. NRC 23rd Howard Leight Electronic Ear muffs Md: R01523 offers Howard Building Leightning series' steel wire high performance and long-term robust. Leightning stands for daily use and abuse without compromising comfort. Type: Electronic Ear Muffs Color: Black / Blue NRR: 23 dB Quantity: 1 pair, Manufacturer: Howard Leight / Sperian Model: R01523