This pendant necklace features a 1-piece design made with high-quality materials such as 18K gold-plated brass, titanium steel, and zircon. To keep the jewelry in pristine condition, it is advised to avoid wearing it during exercise as sweat can cause a reaction that may lead to deterioration and corrosion over time. This imported necklace comes in one size with a chain length of 15.7 inches and an additional 2-inch extension chain, weighing 0.4 oz (12 g).