Description: High Quality Necklace Wax Cord: The necklace cords are made of waxed cotton cord, smooth surface, durable and lightweight. Adjustable: Each necklace cord is 2mm in diameter, 45.5cm-46cm in length with a lobster claw clasp and .9cm extension chain, you can adjust the length to fit your needs. Application: Jewelry making crafts DIY, such as necklace, bracelet, anklet, you can also add pendants, crystals, beads, etc. Quantity: 20pcs Waxed necklace cords, enough for making necklace, bracelets and other jewelry projects. Best Gift: Make your DIY crafts as handmade gifts for your friends or family for Birthdays, Anniversaries, Halloween, Christmas, New Year's Gifts. Specification: Material: Wax Wire Size Chart: Length: 45.5cm-46cm/17.91inch-18.11inch Diameter: 0.2cm/0.08inch Extension Chain Length: 45mm-49mm/1.77inch-1.93inch Package Includes: 20 Pieces Waxed Necklace Cord Note: Please allow slightly errors due to manual measurement and different monitors.