Use and re-use by folding A4 sheets into two and inserting them under the elastic band on the cover. Voila! You don't have to decide anymore on which moments to put down and which ones to spare. There will always be enough pages in your leather journal to take in everything you want on record in a Black leather sleeve. Insert craft papers to make them sketchbooks and charts to make them albums. Insert booklets to make them a portfolio or Insert one side pages to use them as rough books. Oh and did we mention they come with a fabric case?!