Protect the Ears --- Relieve the pain and pressure of your ears caused by wearing the mask for a long time. | Broad Adaptability --- 3 level adjustable, adapt to various kinds of masks, suit for adults kids men women. | Environmentally Friendly Design --- Light weight, environmentally friendly PP flexible material, easy to clean and reuse, fits perfectly to your head, maximum comfort design, tasteless, long life. | Washable and Durable Design --- This ear hook is made of durable PP flexible material that can be repeatedly washed without worry about damage and degradation. | Welcome to contact us by visiting our store, if you have any question just contact us via service email, we offer 7days/24hrs Customer Service.