Owl pendant in sterling silver suspended from 16 inch sterling silver cable chain on an Elementary School Graduation card. What a great gift for your Elementary school graduate! The chain we used is a sturdy, strong sterling silver cable chain - it is 1.3 mm in width. ●Measurements: 16 mm x 13 mm ●Sterling silver cable chain ●Handcrafted in our studio in Brewerton, NY ●Perfect gift for you or a loved one ●Materials and Finish: Sterling silver STERLING SILVER: We use .925 Sterling Silver that we source from reputable companies in the United States. Sterling silver oxidizes and requires polishing from time to time. You can easily restore the shine by using a polishing cloth. CARE INSTRUCTIONS: Sterling silver can react to beauty and cleaning products. Avoid contact as much as possible with perfumes, hairsprays, lotions and household cleaners. To maintain a shiny bright finish for as long a possible, store your fine jewelry away from the air in a ziplock plastic bag, and keep it as dry as possible. Do not wear in the shower or store in a humid environment.