5mm Chain Thickness with Lobster Clasp (3" Extender pictured). The perfect extension chain to match even your most luxurious jewelry pieces. Easily attach to your necklace, bracelet, anklet or other jewelry to give it that extra length you desire. Layer your favorite necklaces or turn your favorite necklace into a different style. The possibilities are endless. Sterling Silver .925. The highest quality you will find. This extender is hypoallergenic, lead-free, nickel-free and anti-tarnish. It’ll look great, feel great and will last for a long time. Strong, Durable and Long-Lasting. You cannot beat our quality. Often imitated, never duplicated. Compared with other alternatives, this extender is stretch-resistant, doesn’t snap or come apart and holds on tight. Our extenders have been made the same way for years, constructed by hand, reinforced and always checked for quality. Perfect for Medium to Thicker Chains. This extender chain will match your jewelry as if it was made for it. Thin, dainty and fine. The perfect companion. Made in USA. We stand proudly by our product and that’s why it stands out. Our design is unique, because it’s made only by us. This sterling silver necklace extender chain is available in 2" to 6" in one inch increments. Made in the USA and constructed by hand this extender is made to last. It's perfect for your finest jewelry and thicker chains. Add just the right amount of length to your favorite necklace, bracelet, anklet or any other piece of jewelry. Use this with any of your treasured pieces.