HKM-991251 Noise-Canceling Double-Layer Earmuffs with Adjustable Headband and Comfortable Cup DesignExperience superior ear protection with the HKM 991251 Noise Canceling Double Layer Earmuffs. Designed for environments with sound levels of up to 105 dB, these earmuffs feature an SNR rating of 35, ensuring effective sound blocking thanks to their multi layer sound blocking cotton construction. The durable ABS shell further enhances their reliability. Comfort is a priority with this design. The adjustable headband caters to various head sizes, while