• QUANTITY – Necklace cords includes 100 pack black necklace cords that are enough for making necklaces, bracelets and other DIY jewelry projects • HIGH QUALITY CORD NECKLACE – The necklace cord for jewelry making supplies are made of waxed cotton cord, and the cord ends are made of environmental alloy metal. The bracelet string is not only good looking, but also durable and sturdy for long time use • SIZES – The necklace string is 1.5 mm in diameter, 20” in length. It also comes with an extra 2” chain extender for length adjustment • READY-MADE NECKLACE CORD – The necklace string for jewelry making are designed with lobster clasp and extender chain on the both ends. Just simply add your charms, beads, stamping blanks and pendants to the necklace string, you can make your DIY necklaces, bracelets, and other jewelry crafts • CORD FOR JEWELRY MAKING – The necklace making supplies are ideal for making jewelry, bracelets, necklaces and other DIY craft by adding crystals, beads, pendants, charms, jades, stamping blanks or other jewelry findings