Silver/Metal xtra-thin Chain for Wearing Mask- Easy Clips-Remove In Seconds- 23" silver/metal chain with 2 lobster clasps (adult) 18" (kids), so you can put chain on a different mask every day; I started making these when I couldn't stand the feel of the mask on my chin and neck all day; this way, I have it when I need it; The history of this is that people just kept coming up to me and asking me where I got it, so I started making them for my friends and family.