Walmeck Hard Hat Mounting Ear Muffs Cap Mount Protective Earmuffs Noise Reduction Ear Covers Noise-cancelling Helmet Attachable Earmuffs Ear Defenders -Noise Ear Protectors

Features: Safety Mounted: easy to clip on a hard hat and fits most hard hats. Sound Insulation: Designed with 2 layers of professional noise dampening foam high sealing solid cup the earmuffs has good sound insulation effect no more bothering by noisy noise. Functional: a simple way to improve sleep quality reduce noise damage to hearing noise interference and effectively improve work and study efficiency. Reliable Quality: ABS shell 304 stainless steel headband good resistance to corrosion heat and oxidation. Ergonomic Design: soft good tightness ear cushion comfortable to wear. Wide Application: for sleeping in flight factory construction site etc. Specifications: Material: ABS+nylon+SS+sponge NRR: 23dB SNR: 28dB Class 5 SLC (80): 29.5dB Item Size: 21 * 15cm / 8.27 * 5.91in Item Weight: 307 / 10.83oz Package Weight: 315g / 11.11oz Package Size: 20 * 14.5 * 9.5cm / 7.87 * 5.71 * 3.74in Package List: 1 * Ear Muffs