This notebook has Tomoe River paper, opens completely flat, and contains graph paper divided into 4 colors.The Tomoe River paper is the same thin, durable paper as that used in the Hobonichi Techo. This allows the 240-page book to stay at a mere 8mm thick, giving you plenty of room to fill to your heart’s content.The 3.7 millimeter graph paper is also the same as that of the Japanese-edition Hobonichi Techo Original. The color of the ink on the page changes every 60 pages (red / blue / green / purple), making it easy to split the book into several themes or use the colors as a way to more easily find old entries.The notebook size is the same as the A6 and A5 Planners, which makes it compatible with any of the Planner’s Hobonichi Techo covers.