Show your national pride with this patriotic mug in a Japanese Flag design. The Japan Flag Mug is perfect for celebrating holidays or showing love for your country. The bottom of the mug explains the unique symbolism of the Japanese national flag, called "Hinomaru" or "sun disc": the design dates back to the 13th century, when the flag was given to the temple by the emperor. Microwave and dishwasher safe. 10oz.