The Winsor & Newton Indigo Blue Fineliner Pen is perfect for traditional sketching, featuring a smoothly tapered nib and a longer barrel to sit comfortably in the hand and allow for flexible grip adjustments. Water resistant, non-fading pigment ink, consistent and reliable ink flow. This set includes 3 Indigo Blue Fineliners: 0.1, 0.3 and 0.5 mm nibs.