These beautiful french hook earring findings are raw, unplated, titanium. Titanium is a lead, nickel and cadmium free, very strong metal. Great for those with metal allergies. They are 21 gauge and measure 25mm (1 inch) from the top curve to the bottom loop. Easily add charms or your own dangle creations to create unique earrings. The loop at the bottom has a 1.4mm opening when closed. Package of 10 (5 pairs)