KONMAY 100pcs Mixed Colors Satin Silk Necklace Cord 2.0mm/18'' with Extension Chain Lead&nickel Free Package of 100pcs mix-colors satin silk necklace cord dull silver Zinc Alloy clasp(free of Lead and Nickel) Length in 18'', plus 2'' extension chain Size of the cord is approx. 2.0mm KONMAY is a U.S. Registered Trademark, didn't authorize any other sellers to use it