Custom name birthstone necklace, personalized name necklace with birthstone, mothers day gift for mom, birth month jewelry birthday giftMaterial: Gold Silver plated stainless steel You have 2 color options to choose from gold or silver Chain type: O chain option like in the photos Its available in the following chain sizes( also check size chart on the listing photos for reference): 16" (40 cm): Falls perfectly around the base of the neck like a collar. If youre petite, it will hit your collarbone, if plus size, it most likely will feel like a choker. 18" (45 cm): Falls just below the