A Sterling Silver Sand Cast Rattlesnake Rattle Pendent, comes with a 20" silver plated link chain... I made a mold from a real rattlesmake rattle for this pendant. The pendent weighs 9 grams of Sterling Silver and measures 1 3/8" X 1/2" . SAND CASTING: Native Americans have been using this method of casting for over 100 years... To sand cast you need special sand, which is very fine, and treated with Glycerin. A metal frame is placed around the carving, then filled with sand and pounded with a hammer till it is firm. The frame is then lifted, leaving the impression of the carving in the sand. A fire proof backing is then attached to the frame, then the moulton silver poured in. After removing the casting the spru is cut off and the casting cleaned up and made into a pendent, hat tack, money clip, Bolo tie, etc...........If you have any questions about my work feel free to contact me, I'll be happy to answer your questions. I mail every Friday. Thanks for looking and best regards, Candy, "Desertcanary"