"18K Gold Initial Letter Necklace, Medal Gold Initial Letter Pendant Necklace, Square Alphabet Rectangle Medallion Pendant Pendants and Box Chain are Gold over Brass and all other chains are Gold over Stainless Steel. This product is tarnish resistant and It will not change color and can be worn in water. Our jewelry is made to last, anti-tarnish, higher durability than a regular gold-plated material, perfect for everyday wear. * Durable and long-lasting material, perfect for daily wear or…