Are you still using a mask to extend the strap to prevent ear pain? Now glasses wearers have discovered a brand new mask ear protector, which is a button that can be installed on the arm of the glasses, allowing the mask to hang on the button to free your ears. The button can be moved back and forth on the glasses arm. The switch of the button can freely adjust the length of the mask strap, so you can easily adjust to a custom size that is more suitable for your face, so that the mask fits your face more and makes you wear the mask more comfortable. The mini size can be hidden in your hair or hat, and will not hinder your stylish personality FRIENDLY SERVICE A 60 Day No-Question-Asked Money Back Is Offered.We Are Aimed At Offering You A Perfect Shopping Experience.Please Feel Free To Contact Us If You Have Any Questions!And We Will Provide A Satisfied Solution For You Within 24 Hours!