Review on 100PCS Black Adjustable Soft Silicone Cord Locks for Fixed 🔒 and Removable Mask Elastic Ropes - Anti-Slip Plugs, Drawstring Buckle Accessories by Kim Sanchez

Cord ties make the ear straps on the masks more comfortable for the wearer. These cord locks are very easy to attach to masks. It was nice that the dealer added a threading tool, but I find it easier and quicker to work without it. How to attach the cord stopper: Place a strip of thread under the ear strap on the mask - tie the two ends of the thread together - insert the two ends of the thread into the cord stopper (large hole first, then the smaller hole) - pull with one hand on the thread while holding the cord holder with the other - pull until the ear strap goes through both holes of the cord holder. I use 1/4"