A3: 295x425mm A4: 216x295mm A5: 108x192mm Pages: 30 pages/book. The perfect coloring book for beginners to professional artists, and also an ideal choice for adults and children who want to learn to paint. Wide use and easy to carry. It is recommended to use markers, chalk, pastels, pencils, charcoal, as well as pens and ink. The large drawing paper allows you to easily put it in your bag, backpack or handbag, so you can capture inspiration anytime, anywhere on your journey. Double-sided, 30 pages - Each page has a double-sided texture, providing a total of 60 pages to explore your creativity as a professional or beginner. The works are suitable for a variety of styles, including sketches, puncturing, comics, still life paintings and more! Easy to remove pages - Sometimes you make a mistake and want to start over, or you want to tear off a page to share with friends. For whatever reason, it's easy to tear out the page thanks to the perforated edges. Spiral binding design - The structurally clear sketchbook consists of 30 sheets, with a durable two-row spiral binding design that can rotate 360° freely. The binding is firm, page turning is smooth and pages are not easily lost, maximizing your creative space. Multifunctional journal book - The perfect coloring book for beginners to professional artists, and also an ideal choice for adults and children who want to learn to paint. Product information Product size. A3: 295x425mm A4: 216x295mm A5: 108x192mm Pages: 30 pages/book