This 1/2" (12.5 mm) diameter spot in high quality solid brass and antique copper platting, can be used on leather, fabric and many other items. These are an easy to set decoration for highlighting and adding character. The detail and craftsmanship will give your articles a true accent. Each spot or nail head has 2 extra-long ¼” (6.4 mm) spikes. The hand press die SD00641 in our store works. Once threw your item, bend the prongs in or out for a secure hold. Thank you for looking and feel free to message with any questions. Made In USA