Single Brown Koi Brush Marker 
The flexible nature of the durable brush tip allows its users to create lines varying from 0.5mm all the way up to 4mm..
The Koi Brush Markers compact 140mm length and light body makes for an exceptionally fluid drawing and colouring experience..
Koi utilises a blendable dye-based ink, which allows for a multitude of different hues to be created..
This blendable quality can be further enhanced by using a "Blender Pen" to create flawless gradients..