6x10x4mm cast silver plated base metal economy lobster clasps, 1.1mm inner diameter loop. Overall dimensions include loop. Lobster clasps (also called trigger clasps and parrot clasps) are one of Rings & Things most popular clasp options. Questions? E-mail us for friendly, expert help! 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.