Best for Mandala, Sketching, Acrylic painting, Metallic watercolours, Multi-Coloured Pens and Gouache colours Excellent for Oil Pastels, Soft Pastels, and Dry & Wet Mixed Media Paper can be used on both sides Suitable for major printing techniques including screen printing, foil blocking and many more The paper is an authentic black paper, even if you tear the paper, the inside of the paper is pure black colour Thickness: 180 GSM Type of Binding: Wire-O Paper Colour: Matte Black Paper Acid-Free Paper Perforated Sheets Number of Pages: 80 Pages in all the sizes Hardbound Book Paper is imported from Koehler Mills, Germany Best results with Sakura Gelly Roll Pens