Multi size sketchbook: The sketchbook includes 2 sizes, 29.5*21cm/11.6*8.2 inches and 21.5*15cm/8.4*5.9 inches, each size has 35 sheets of 70 page sketch paper. The size and quantity are enough to meet your needs and can be taken with you when you go out. Thickened paper: sketchbook is made of 160g thickened paper, the writing ink on it will not penetrate into the page. The surface of sketch paper is smooth and textured, easy to color and does not fade, and can be used for a long time. Kraft paper cover: The front and back casing of the A4 A5 sketchbook are made of sturdy kraft paper. When we sketch, it will provide a solid base, making it more convenient for you to use, and at the same time, it can also protect your sketch works. Binder binding: A4 A5 sketchbook is bound with a binder, which can be flipped 360 degrees, allowing you to lay it flat or turn pages more flexibly during use. At the same time, our binder is detachable, so you can store and organize it at any time. Wide application: A4 A5 sketchbook sketchbook is for making sketches, paintings, art books, travel journals, scrapbooks and more, suitable for pencils, crayons, charcoal, sketch pencils and more.