From Daika to Reiwa, the B5 size underlay features the original 248 number used in Japan, and the read-name and the first date chart. The front has the text of the "Reiwa " and the back of the generations used in Japan. Great for use as a regular underlayment or for those who love history... Size: Height 9.8 inches (250 mm), Width 7.1 inches (180 mm). Item Color Trend:White Cover Pattern: Typography