32x24mm. Vintaj nickel-free brass fastenable embellishment. Identifiably named simply because you can fasten them to anything! Great product for altered art. Use brads, rivets, nails, wire, etc. to fasten this item to metal, paper goods, leather, wood, canvas and more! Also, string, link, suspend, dangle, and cluster to create bracelets, earrings, and necklaces.