<p><b>Stepless adjustment mask strap extenders relieve your ear pain</b><br> <br><b>Material:</b> microelastic cotton rope and plastic adjusting buckle<br> <br><b>Package Contents:</b> 4 pcs mask loop extender<br> <br><b>Color:</b> Black<br> <br> Only the above package content, other products are not included.<br> <br><b>Instructions For Use:</b><br> </b>Hang the mask lanyard on hook of the ear strap hook,<br> </b>and adjust the tightness freely according to the size of the head.</p>