Each Tombow Dual Brush Pen has two tips: a fine one that’s perfect for details & a flexible brush. The brush is durable yet soft, & you can easily use it to create fine, medium or broad strokes. It’s also ideal when you want to fill larger areas with colour. The ink inside the pens won’t bleed, & is odourless & acid-free. Since it’s water-based, you can blend the colours, just as you would with watercolour paint. Tombow Dual Brush Pens are particularly popular with graphic artists & watercolourists, but you can use them for just about any kind of drawing. This set contains 12 Tombow Dual Brush Pens in a good range of vibrant colours: N15 Black N75 Cool Grey 3 055 Process Yellow 296 Green 476 Cyan 555 Ultramarine 676 Royal violet 725 Rhodamine Red 845 Carmine 873 Coral 879 Brown 933 Orange