Soundproofing Ear Muffs: you will receive 6 pieces of hearing protection ear muffs in black, sufficient quantity can support your use and replacement needs in the daily life and meet your various demands Adjustable and Comfortable: the safety ear protection adopts adjustable headband and 360 rotatable ear cups with comfortable foam, can be adjusted to fit most adults men women, just pull or push the earmuffs from the metal string to adjust the size Effective Noise Cancelling: the adults noise cancelling ear muffs are made of ABS material, designed with double layer sound damping foam and twin cup, providing you NRR 28dB noise reduction; The soft, skin friendly ear cushions will fit snugly around your ears, and the soft imitation leather provides a tight soundproof space for you Easy to Store: the safety ear muffs with compact folding design is easy for storage and convenient portability; You can fold ear muffs nicely to fit in your bag, backpack or briefcase while take only a small space Widely Applications: the hearing protection is suitable for schools, classrooms, libraries, offices, business events and more, they are ideal ear protection for children, teens, adults and students, allowing you to have a relaxing time Additional Information