3mm .925 Sterling Silver Nickel-Free Rounded Box Link Chain - Made in Italy + Polishing Cloth PURE SILVER & NICKEL FREE - This 20 inch box necklace is 3mm wide (3mm thick) with a weight of 30 grams of pure sterling silver that fastens with a sturdy oval lobster clasp. Manufactured in Italy under stringent government regulated quality control standards, we guarantee that it does not contain any nickel and will not cause any allergic reactions BONUS POLISHING CLOTH & VELVET POUCH - Includes a complimentary anti-tarnish black velvet jewelry pouch and a dual-layered premium quality microfiber jewelry polishing cloth to clean, buff, protect & maintain the luster of your jewelry MADE IN ITALY - 100% nickel free Italian made authentic .925 sterling silver jewelry. The Italian government enforces stringent quality measures and, as a result, Italian jewelry makers provide a level of quality that is unmatched by any other country in the world. Most people are surprised what a difference it makes when they upgrade to Italian jewelry from cheap Chinese knock-offs - but the craftsmanship, finish, & feel needs to be experienced in order to really appreciate the difference LIFETIME AUTHENTICITY GUARANTEE - We absolutely guarantee that x-ray assay test results will reveal that the silver content used in this chain will be at least 92.5% sterling silver - usually higher but never less <span class="a-text-bold">Step 1</span>: Use the treated interior white cloth to gently polish your jewelry as it removes tarnish, dirt and fingerprints <span class="a-text-bold">Step 2</span>: Finish by using the exterior black cloth to buff for a gleaming, high luster shine Sterling silver chain inside a tarnish-preventive sealed bag nestled in a premium tarnish-resistant velvet pouch Dual-Layered Deluxe Microfiber Jewelry Polishing Cloth