Copper Lock Necklace All locked up! I created this adorable necklace with copper metal clay. I've refined it, kiln fired it, and polished it to a high shine. It's been oxidized to bring out the details and make it look a little old. The copper chain connects directly to the lock giving the looks that it's locked together. Necklace measures 17.5" in total length. Visit my shop at willajunejewelry.etsy.com Please visit my policies page for information regarding payments, shipping and returns. All orders over $75 come with a complimentary polishing cloth.