7x12x4mm copper plated base metal cast zinc-alloy economy lobster clasps (lobster claw clasps), 1.3mm inner diameter loop. Overall dimensions include loop. Copper plate is a bright, shiny copper plating. Questions? E-mail us for friendly, expert help! Sadly, the manufacturer of this item has closed. We are working on replacements, but they may not be identical in shape or price. In the meantime, we suggest trying alternate colors or sizes of this item if/when it is out of stock. Please search for the first 5 or 7 digits of this item number, or see the "Related Products" tab for help finding similar items.