Materials metal, iron 12pcs Star Key RingsìSilver Flat Key RingìPlated Split Jump Rings ì Flat Split Ring for Keychains Width Sizeú 1-3/8"è35mmé Thickness ú1/8"è3mmé color : Silver QTY: 12pcs Materials: iron There might be slightly differences between objects and images due to manual measurements. We ship within 1 to 3 days. Shipping is via china Postal Air .It takes 15 to 30 working days for international delivery. If have any question, don't hesitate and feel free to contact me anytime. If you need more pieces than this listing, please contact me, let we looking for you.