Moldex M-Series Earmuffs are flexible and lightweight with an appealing, stylish design. Seamless workmanship make these earmuffs robust and durable with grip points for easy on-head adjustment. They also feature a smooth sliding mechanism for size adjustment. The extra soft foam air cushions and low contact pressure ensure the M-Series are extremely comfortable. Available in a range of protection levels: M4: SNR 31dB, M5: SNR 34dB and M6: SNR 35dB Ref: UTTK8181