The mask chain is here so that you don’t lose you mask when you’re out to eat or get a break to pull your mask down. Attach the mask chain to the elastic on your mask and when you take you mask off it will hang around your neck like a necklace. Your mask will comfortably hang around your neck until you’re ready to put your mask on again. This mask chain is made from durable cotton or taffeta by hand (clean of course) with love!