Where there is contact with water, is made of inside and outside, and the surface and the inside are the same.No heavy metal precipitation, natural , boiled water is more mellow.It is as light as aluminum and hard as steel, and will never rust without magnetism. is "biophilic" and is a metal that is completely and to the human body. Therefore, it is widely used in the manufacture of medical equipment, heart valve stents, artificial bone joints and so on.If you want to be irreplaceable, you must always be different.Precise temperature control, automatic power-off, safety and dry-burn prevention to ensure that every drop of water boils.The size is purely manual measurement, it is inevitable that there will be errors, please refer to the actual product.Due to the difference in shooting lighting and each display. There will be varying degrees of chromatic aberration. Subject to the actual product.will definitely add a nice and stylish look to your kitchenSmooth & ergonomical handle: Lift the handle up when boiling and let it stay cool for a while before put your hand on it.