Record your creative ideas and doodles in the Jasart Black Paper A4 Visual Diary. Each diary contains 80 pages (40 sheets) of thick, premium quality 140gsm black paper. Paper is acid-free so it won't react with other materials. Pages tear off the spiral binding easily, allowing you to display your artwork when you're done. Features: 140gsm black paper. A4 size is perfect for everyday artwork. Paper is acid-free so it won't react with other materials