Shinkoukinzoku Hammered Tumbler, Medium, Copper 100, S-502, Dimensions: 7mm diameter x 12cm high, Bronze

Copper boasts excellent thermal conductivity among metals. Pour a chilled drink into this cup and it instantly cools to the same temperature, quenching your thirst and cooling your body. The coldness is unmatched by glass. Its cooling effect also lasts, so you can enjoy your drink icy and delicious even after 15 minutes. The water droplets that form on the surface enhance the refreshing feeling. Product Dimensions: 7mm diameter x 12mm height Body: Pure copper Country of Origin: Japan