These Brand New Miami Cuban Chains are 100% GENUINE 10K YELLOW GOLD and are STAMPED 10K. These chains are REAL GOLD, they are NOT PLATED, NOT FILLED. These chains are intentionally crafted to be lightweight and are still entirely made of 100% Pure 10K Gold. These chains fasten with a 10k Yellow Gold Lobster Clasp that is very strong and easy to use. These chains can be layered, stacked, worn on their own or with a pendant or charm. These high quality Miami Cuban chains will not tarnish or discolor as they are Pure 10k Gold and MADE IN ITALY.