Description:Material: Made of durable paper materials for smoothly writingFeatures: Tight binding, paper will not fall off.Folded 360 degree without damage.PU Leather Soft Cover: Smooth to the touch, fine workmanship, waterproof, dustproofBlank pages: with total of super thick 660 pages, can use as sketchbook or diary.Pens suitable: Fountain pens, gel pens, ballpoint pens, pencils, highlighters, color pens.Specification:Type: NotebookColor: black, blue, red, brownMaterial: Paper+PU Leather soft coverProduct size(about):A4(28.5x 21 cm), A5(21x14.5 cm), A6(17x12 cm)Inner sheets: 330 sheets( 660 pages )Package included:1 x NotebookNote:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. 2. Please allow 1-3cm differences due to manual measurement.