15mm plated high-quality gunmetal lobster clasps (lobster claw clasps). 9x15x4mm, 1.8mm loop (inner diameter). Overall dimensions include loop. Made of solid brass then plated. This style is more durable than zinc-based lobster clasps. Black gunmetal color may range from gun blue to matte dark gray to shiny black metal. Sadly, the manufacturer of this item has closed. Replacements are in the works, but they are much more expensive, so get this item while you can! If/when this item is out of stock, please search for the first 5 or 7 digits of this item number, or see the "Related Products" tab to find alternate colors, sizes and styles.