These stamping blanks are made of high-quality Material, polished and finely processed, and stable, not easy to fade, rust or break, with a luster similar to silver. It remains bright and shiny with long-term wear. These blank tags can be engraved into decorations or gifts and given to friends, family, girl-friend on birthdays, Christmas and other meaningful days. These blank stamped tags are perfect for making signs, necklaces, bracelets, pendants, name tags, Pendant, key chains, bag charm, sweater chain charm, ornaments, lost sign and other laser engraving blanks jewelry charm. Instruction: For better stamping, you can place a metal workbench block underneath the blank stamping tags. Colour:Black Material:Metal Size: 30mm / 1.2inch;Thickness: 1.6mm NOTE: Please pay attention to whether its size is enough to engrave the words you want to engrave. Package Contents: 16 * Keychain Making Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.