Double Wall Glass Coffee Cup structure keeps heat and Heat resistant double wall glass cup Heat resistant glass single [Double cold] (250ml item)

---------------------------------------------------------------------- 【Cautions for using electrical products】 When using electrical appliances, please note that the voltage is different from that of Japan, which may cause malfunctions. Since the plug type is Japan type(A or B type), please check the voltage and use a transformer. Please note that a transformer is different from a conversion adapter. We are not responsible for malfunctions caused by use without a transformer.

【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. ---------------------------------------------------------------------- [Heat-resistant glass] Made of borosilicate glass, which is lighter and safer than ordinary glass. It has a heat-resistant temperature range of -20℃ to 130℃, and is also microwave safe. [Double wall glass] The glass has a double structure, so it maintains the temperature of both cold and hot and has excellent heat retention, allowing you to hold hot, freshly brewed drinks without resistance, and ice. It also prevents condensation from forming on the surface of cold drinks, so you can rest assured that important documents on your desk will not get dirty in the office or when working from home. [Wide range of uses] It's stylish, fits well in your hand, and is easy to use, so you can enjoy it not only during tea time or entertaining at home parties, but also as a tumbler for drinking alcohol or beer. [As a gift for a loved one] This stylish glass makes the contents appear to float when poured into it, and has an excellent appearance and is easy to use for any occasion. Perfect as a gift for weddings, moving, housewarming, and anniversaries! [Craftsmanship] Each piece is handmade by a craftsman, so there may be individual differences in shape. There may be scratches or bubbles on the inner and outer surfaces, but this is a part of the manufacturing process and is not a defective product. [Design with a handle] The mug type has a handle, so it fits comfortably in your hand and can be used stably. The double wall structure not only makes it easy to hold hot drinks, but also makes it comfortable to hold cold beer glasses as there is no condensation on the outside of the glass.