Castle Enterprise Asahi Premium Pure Copper Rock Cup, Set of 2, Gift Set with Gift Packaging

---------------------------------------------------------------------- Size: Approximately 7cm in diameter x 8.5cm in height Material: copper Country of origin: Japan This set of luxurious copper cups comes in a paulownia wood box, making it an ideal gift. It's sure to please people of all ages, whether for a housewarming party or as a wedding favor. Each cup is meticulously hand-polished by skilled artisans. With a large 450ml capacity, it can hold a full 350ml can of beer. Copper boasts five times the thermal conductivity of iron and 25 times that of stainless steel. Drinking cold beverages from a copper cup offers an exceptionally refreshing sensation on the lips and in the hand. Furthermore, copper possesses a remarkable property called trace metal action (copper ion action), which exhibits incredible antibacterial properties simply by mixing with water. This action of copper ions prevents the growth of microorganisms, keeping copper tableware hygienic. You'll feel the difference the moment you hold it. Because of copper's excellent thermal conductivity, pouring cold beverages into the cup cools the cup itself, resulting in an incredibly refreshing drinking experience. The spiral polishing of the inner surface creates a creamy head when pouring beer, resulting in a smooth and enjoyable drinking experience. Experience the exquisite beauty of copper cups with their sophisticated design.