Obsidian stone on Cuban Link Necklace. Length options are 18", 20", or 24" *20" is the most popular* Each necklace is hypoallergenic and is 14kt gold plated. The wire consist of polished brass and is able to be polished with a jewelry cleaning cloth. Order are made when ordered. Please allow 7-10 business days for your purchase to be created. A two day USPS tracking number will be provided.