Sakura : Koi : Color Brush Pen : Viridian

The Colouring Brush Pen from Koi mixes the convenience of a pen with the versatility of a brush. With the durable brush nib you can achieve fine, medium or bold brush strokes with varying pressure and angles on the nib. The odourless water-based solvent blends easily (blender pen is available separately) to create seamless gradations of tone and colour, whilst the compact pen length (140mm) makes them more convenient on the go.Koi Colouring Brush Pens are a convenient way to add colour to any sketch, cartoon, journal or illustration - and the super flexible nylon nib will quickly spring back into its original shape after use.