Blank Coin Material and Size: Laser engraving coins are constructed with premium quality metal with gold plated,These metal blank coins for engraving are approximately 1.57 inch (40mm) in diameter and 0.11 inch (3mm) in thickness. Meaningful Handicrafts: Creating personalized blanks with patterns and words. Laser engraving blanks can become DIY keepsakes: medals, badges, charms, necklace, pendants, bracelet, pet tags or keychains when it combined with different hooks and rings. Personalized Collectible Gifts: Make gifts with these blank medals to friends, family, colleagues, coworker, employee, DIY lovers, coin collectors, veterans, charity on Birthday, Christmas, Thanksgiving, Graduation, Holiday, Anniversary. 30Pcs Blank : Handmade workmanship blank coins with frosted texture and threaded edged for engraving, these gold coin blanks meet your daily DIY crafting needs to make your own precious coin collections or a ideal gift to your loved one. Easy to Make DIY Crafts: blanks are suitable for fiber laser engraving, metal engraving or manual engraving. There are different effects on different machine. It is recommended to slowly increase the power get the desired effect.