The Uni-Ball Fineliner Pen is amongst our most popular pens especially with amateur and professional artists including designers, they are affordable, high quality and at such a great price this is a must buy. Pin range fineliners use a super ink which makes what you write or scribble down waterproof, fade resistant and even tamper proof, making it very difficult to fake and change any sensitive documents you may have. Super ink is also great if you like to work with other liquid based mediums such as watercolours as the ink will not smudge. The Pen itself has a sleek and aesthetic design with a strong steel nib attached meaning the PIN fineliner is a good choice for writing or sketching. - Tips: 0.1mm - Single Uni Pin - Colour is Sepia - Big range of other nib sizes making the Pin range useful for illustrators and designers of all skill levels - Smooth and consistent ink flow - Features high quality Super Ink that is waterproof, fade resistant and tamper proof