This is a gift, but I am selling it because I have no opportunity to use it. Images 1-8 are from the internet. The actual item has been opened for photography, but the plastic wrap is unopened. The following product description is excerpted from the website. [Features] ● Crafted with care by an industry-leading polishing craftsman who can polish anything from Western tableware to various metals. ● Boasting 5 times the thermal conductivity of iron and 25 times that of stainless steel, the sensation of coolness on the lips and in the hand when drinking cold beverages is exceptional. ※Caution※ Due to the high thermal conductivity, the body will become hot if you put hot items such as hot water in it, so please be careful. [Product Details] Diameter: Approx. φ82mm (drinking part), φ50mm (bottom part) Height: Approx. 150mm Weight: Approx. 134g Capacity: Approx. 380ml Material: Body / Copper, Inner surface / Tin plating Country of origin: Made in Japan