KONMAY 100pcs Black Real Leather Necklace Cord/Choker 2.0mm/17'' with Extension Chain Lead&nickel Free Package of 100pcs black real cowhide leather necklace cord dull silver Zinc Alloy clasp(free of Lead and Nickel) Length in 17'', 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