The Staedtler Pigment Liner Pen Black (0.5mm) is a high quality pigment based ink drawing pen. It is designed for writing, sketching and drawing, with a long metal tip suitable for use with rulers and templates. Available in a choice of line widths, the Pigment Liner uses indelible pigment ink which is light-fast and waterproof, erasable when used on drafting paper, and guaranteed to cause no bleeding when highlighted. Specifications: Long metal tip for use with rulers and templates, indelible pigment ink, light-fast and waterproof, erasable on drafting paper, no bleeding when highlighted, cap can be left off for 18 hours without drying up, PP barrel. Writing colour: black. Felt tip pen for writing, sketching and drawing. Polypropylene body ensures long life. Erasable on tracing paper, highlighter resistant (does not smear).