Sailor Fude De Mannen - Stroke Style Calligraphy Fountain Pen - Bamboo Green - Nib Angle 55 Degrees (11-0127-767) Fude DE Mannen is a fountain pen whose special nib allows the user to write calligraphy-quality letters easily, even for individuals unskilled in the use of calligraphy and brush products. The pen is available in a high angled Wakatake nib (nib angle 55) for fine lettering You can write foe thick to fine writing by varying the writing angle.