Material 14K Solid Gold, Gold Filled, Sterling Silver Production Time 3-7 Business Days Chain Delicate 1mm cable chain Locket Size Mini: 16.5mm X 11.5mmClassic: 20mm x 14.5mm Photo Size Mini: 8mm x 7.5mm (glue required to add photos)Classic: 10mm x 9.5mm (clear inserts included)