Doshisha Cold Double Vacuum Single Aluminum "Hyokyoku" Tumbler, Insulation, Wall, Wall, 540ml, Silver, ON℃ZONE

Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. You'll feel the shocking coldness right from your lips. Experience the ice-cold sensation. This hybrid tumbler makes cold drinks feel even colder. Designed for keeping drinks cold. You can feel the coldness the moment your lips touch it. Aluminum has high thermal conductivity, so your chilled drink will feel even colder. It has a thin mouthfeel, is easy to drink, and is ice cold. It comes with a double vacuum cover so your table won't get wet from condensation.