【Features】 Copper boasts heat conductivity 5 times that of iron and 25 times that of stainless steel, providing an exceptional sensation when drinking cold beverages, both in terms of the mouthfeel and the coolness felt in your hand. ※Please note※ Due to its high thermal conductivity, the body of the product will become hot if you put hot liquids such as boiling water in it. Please be careful. 【Product Details】 Size: Approximately φ90 x 115 x H95mm Weight: Approximately 187g Capacity: Approximately 360ml Material: Body / Copper, Inner surface / Tin plating, Handle / Brass Country of Origin: Made in Japan Brand new, unused With box No comment purchase is OK. Please refrain from purchasing if you are nervous about home storage. Made-in-Tsubame certified product Asahi CNE902 Pure Copper 12 oz Mug Cup 360ml Glass Cup Outdoor Sake vessel Cup Mug Cup Coffee Cup Beer Mug Saucer Teacup Tea set Tumbler