18 Karat Gold Plated over 316L Titanium Herringbone Snakechain Choker by Inspired Jewelry. 11 inch long chain, 15.5 inches with adjustable extender and lobster claw clasp. 2mm thickness Chain lays flat & has a shiny finish. Safe for sensitive skin Tarnish resistant New in box. The shortest chain in last picture provided for reference. The fit depends on the size of your neck.