*** modified and altered *** Price on this is form. thanks 100% authentic Tiffany & Co sterling silver chain links. 10 links measures 2.75" and will will add 2.5 " of wearable length. Keep in mind that one or both of the end links will be cut. Links measure approximately 11mm x 10mm and are 2.1mm thick. These links will match many of Tiffanys current and vintage models. If you are not sure they will be a match, please message before buying. Message if you are looking to match a different model. Thanks!