Main Features: 1. Fashional Design: Light weight, tasteless, durable, easy to clean and reusable, long use life. 2. Broad Adaptability: adjustable, comfort design, Suit for various kinds of masks and people, fit perfectly for the head. 3.Work with hearing aids and it helps reduce the pain and pressure of wearing a mask in the ear for a long time. 4.The mask band is as an extension strap and suitable for age group. Also work with cloth or homemade masks that have a thicker elastic or string. Package Include: 4 X adjustable anti-slip ear strap hooks