100% personally beachcombed spark plug insulator. Gently cleaned and hand crafted in to a beautiful creation personally by Heidi of Pacific Patina. These key chains are incredibly unique! They are created from an insulator piece of a WWII era military spark plug. Decades of tumbling in the ocean and on Jewel Beach corroded and stripped these spark plugs of their metal components leaving only smooth ceramic. A perfect gift for military, automotive or history fanatics! A piece of sea glass and sea pottery has been added to this key chain and the spark plug can be identified as a Firestone E-120. Read more about its special history here : https://www.orau.org/ptp/collection/consumer%20products/sparkplugs.htm. Size: Approximately 5" from top of carabiner to bottom of key chain.