describe:Material: Made of durable paper, writing smoothly.Features: The adhesion is tight, and the paper does not fall off. 360 degrees without damage.Soft PU leather case: smooth hand feeling, fine workmanship, waterproof and dustproofBlank pages: A total of 660 pages can be used as a sketchbook or diary.Applicable pens: fountain pens, gel pens, pencils, highlighters, colored pencils.Specification:Type: NotebookColor: black, blue, red, brown.Material: Paper + PU leather soft coverProduct size (approximate): A4 (28.5 x 21 cm), A5 (21 x 14.5 cm), A6 (17 x 12 cm)Inside pages: 330 pages (660 pages)Package Contents:1 notebooktip:1. Due to the difference in lighting and monitor settings, the color of the article may be slightly different from that shown in the photo.2. Due to manual measurement, the size of 1-3 cm is slightly different, please take it into account.