Come and Check Our Promo Solutions.Our coffee cups are made of high-quality 304 stainless steel. They can withstand high temperature of 800 degrees, have good processing performance, high toughness and corrosion resistance. They will not rust or change color with the passage of time. The surface has a smooth mirror finish and the interior has a brushed finish. Suitable for dishwasher. The elegant double-layer design makes hot things more insulated, and cold drinks stay cold longer. They are durable, shatterproof, double-layer design with handles, and look cool. It is also very suitable for putting this coffee cup at home. Pls check inventory and detailed info with us before placing your orders.