Ideal for personalizing projects, especially designing jewelry! Stamp, impress, texture, fasten, hang, link, layer, bead, string, suspend, hammer, flatten, rivet, cluster, glue, alter, ink, paint and more to create all types of projects! Use with brads, grommets, rivets, nails, jump rings and wire (sold separately). This package contains four .875x.875 inch copper metal blanks. WARNING: Choking Hazard- small parts. Not for children under 3 years. Lead and nickel free. Made in USA.