Leuchtturm 1917 Softcover Notebook - Forest GreenFlexibility is key! Details make all the difference! Leuchtturm 1917 notebooks are manufactured with the highest quality materials and construction. Each notebook is thread bound with high quality bleed proof, fountain pen safe paper. The book opens flat with a flexible softcover that washes off easily and is pleasant to the touch. Leuchtturm will help you get organized; the blank table of contents and page numbers will make leafing through your notes