These lanyards/mask straps are very comfortable to wear. This package contains 30 multi-color lanyards. (Pink, Silver, Blue, Black, Yellow) They can be used to hold your glasses, your hat, and most importantly your face mask. With these, you can let the mask hang when eating or when not in use. More importantly, you won't end up getting them dirty or losing them by leaving them on the table/countertop, which is also not hygienic. They’re easy to adjust with just a light squeeze on the attached round button. If the mask is loose you can cinch it to bring it closer to your face, by pulling on the strings to adjust. They’re super easy to slip on, just put the loop through the handles of your glasses, or when using it for the mask attach the lanyards to each end of your mask. Simply slide up or down to make the length just the right size for your particular use. You’ll never have to worry about misplacing your glasses, cap, nor your mask again! You will want to share them with your f