A heavy address book by Kansai Yamamoto. Size: Approximately 26cm (height) x 29cm (width) With the recent spread of mobile phones, address books are becoming unnecessary. However, considering situations like disasters where you might run out of battery and lose your contacts, having one of these would be very convenient when using a public phone. Although it has never been used, it has been stored at home for a certain period, so I have noted that it has some minor scratches and stains.