The uni-ball PIN is an excellent value drawing pen which features uni-ball’s signature fade proof and water resistant Super Ink. Uni Pin Fine Liners can easily be used with watercolour work as the ink will not smudge when wet. The wide range of nib sizes available in the PIN range mean you can create several line widths making the uni-ball essential to creating contrast and is a fantastic addition to your art supplies.. The nib is supported and protected by steel meaning the PIN drawing pens are long-lasting and will not be damaged from use with stencils. - Ideal for drawing, technical drawing, outlining and sketchbook doodles - Nib sizes available: 0.3mm - Durable steel nibs - Also available in sets - Ink colour: Black