Adjustable (sliding ) gold plated brass necklace extenders. Adjusts from 3.75" to 6.25". 20 links per inch, outer dia. is 1x2mm, and wire is 0.89mm/.035" thick. This gold chain is made from a base metal core with a layer of gold applied to its surface. Use these necklace extender findings for necklaces that have a spring ring or lobster clasp. Useful to have on hand for customers who prefer a longer necklace than your stock size. Comes in blister packages, ready to display.