The Uni-Ball Fineliner Pen is amongst our most popular pens with beginner and professional artists and designers, they are so affordable and at such a great price this is an industry standard. Pin range fineliners contain a super ink which makes what you jot down waterproof, fade resistant and even tamper proof, making it very difficult to fraudulently alter any sensitive documents you may have. So with super ink, if you like to work with other water based mediums such as watercolours then the ink will not smudge. The Pen itself has a sleek and beautiful design with a strong steel nib attached, the PIN fineliner is a solid choice for writing or sketching in a notebook. - Tips: 0.5mm - 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