Thank you for viewing! Please read the profile before considering a purchase. These beads change color in sunlight or UV light. They revert to a milky white color without sunlight. The material is a very durable and flexible fishing line chain, which doesn't have the stiffness of wire. The part that touches the neck is made of small round beads for a comfortable glasses cord. We have a variety of color variations, so please see page 5. Please request bulk orders via comments. Why not match it to your lucky color or the color of your outfit for the day? Can be changed to a kimono napkin clip for 100 yen. Please request via comments. - Colors: Yellow, White, Silver - Materials: Color-changing beads, acrylic beads, faux pearl beads, flower-shaped spacer beads, small round beads, tiny beads, fishing line - Uses: Glasses chain, glass cord, mask chain - Size: 70cm (including glasses silicone fasteners) This is a handmade item. Please refrain from purchasing if you are concerned about minor details. #yellow #yellow #glasses chain #glasses strap #glass cord #mask chain #kimono napkin clip #accessories #handmade #handmade accessories