Wholesale Prices in Price Matrix. Each waxed cotton Cord Necklace has a lobster clasp. Wax Cord Necklaces Size: 17" - 18" adjustable in length. A beautiful necklace for adding your own pendant to create your own necklace. (See our pendant category to check out our large selection of pendants to add to one of these beautiful necklaces.) Also great for color coordinating parties and/or school functions, etc.