A truly unique paper. Ideal for calligraphy, and all fine line pen and ink work-including technical illustrations. A smooth hard surface for every type of pen, from Hawk Quill, Crow-Quill, 6/0 Technical Pen, Dip-Pen, Ruline Pen, Superfine Fiber Point, etc. For rendering fine, clean lines this is the one. No feathering, no bleeding nor breaking up of fine lines.