Set of 3 Adjustable Necklace Extenders - Goldtone Our customers requested a new version of our best selling adjustable necklace extenders, and we were happy to oblige! Two small bars on the extender allow you to adjust them from 3-6 inches, for extra breathing room or just a new look. Using these necklace extenders is easy - just clasp each end of the necklace extension to each end of your chain, and slide to adjust the piece to your desired length. These extenders are perfect for tennis necklaces, link necklaces, and any pendant that is fixed on the chain. Available in two versions - Silver Tone or Gold Tone. Shop them both so that all of your necklaces can be extended!