Safe drinking The tea maker set was made of premium titaniumwhich is not easy to react with other substances, will not leave a metallic smell or taste, maitain the original flavor of tea. Anti-scalding Design Both the tea maker (Internal vacuum process) and cups are designed with a double layer structure that effectively reduce heat conduction and prevent scald, so it will not be hot to hold.(The top of the tea maker is single layer, which makes it easier to pour water out) Two colors for your choice - Silver and Mix color High-temperature crystallization process to form a brilliant ice flower surface. No coating, no painting, easy to clean, more scratch-resistant than sandblasted surface, natural colorful. No fingerprints and water stains, crystalline show more texture.