The Leuchtturm1917 Notebook in Orange measures 3.5 x 6 inches and features 185 numbered pages of ivory lined acid-free 80gsm paper. The lines are spaced 6mm apart. The Leuchtturm1917 pocket A6 sized notebook includes an index for easy organization, 8 perforated and detachable sheets, a page marker, a gusseted pocket in the back, and an elastic closure. Filing stickers are also included to help you make the most of your notebook.