The Faber-Castell Pitt Artist Brush pen is a superb art product featuring high-quality pigment ink in a range of brilliant fine-art colours. Very light-fast and waterproof. Acid-free and pH neutral. Quality brush point provides maximum flexibility for expressive strokes or accurate detail. Ideal for graphic artists, designers, illustrators, architects, etc. Also available in various assorted sets. BRAND Faber-Castell is globally renowned and loved. They are a world leading manufacturer of top-quality, innovative art materials. Faber-Castell have become the go-to brand for artists, for centuries, whether professional or hobbyist INK The waterproof drawing ink incorporates high quality pigments with unsurpassed lightfastness EXCELLENCE The finest quality permanent Indian ink is acid-free and archival NIB The quality brush provides maximum flexibility for spontaneous sketches or detail work, and the fine point glides smoothly and softly over the paper.The superfine nib is perfect for adding very intricate details to projects.The calligraphy nib is flat and broad, which is great for creative letting, script writing, calligraphy, drawing and more IDEAL Perfect for designers, graphic artists, illustrators, architects and both professional and hobby artists.Excellent for plans, drawings, and layout work. Faber-Castell has combined all the advantages of artist's inks with the benefits of a modern, easy-to-use disposable pen - the PITT artist pen. The pigmented and very lightfast drawing ink is ideal for sketches, drawings, layouts, fashion design and illustration. The acid-free, archival ink is smudge proof, waterproof and won't bleed through paper. For best results we recommend using PITT pens on a smooth surface such as fine grain cartridge paper or bristol board. For sets, see the Faber-Castell Pitt Brush Pen Collection. Product Details: Pigmented India ink High lightfastness Flexible brush tip, retains its shape Waterproof, permanent Odourless, acid-free, p H neutral Does not bleed through paper View colour chart