Two inbuilt nibs, fine and broad. The fine bullet nib is narrower, making it ideal for more precise detailing and line work. The broad nib is great for quick visuals and filling in larger areas.
Promarker colours have a translucent quality and can be layered to achieve varying depths and opacities.
Overlay different Promarker colours to produce new colours, and depending on how wet the ink is, smooth transitions can be achieved.
Unlike ordinary felt tipped pens or low grade markers, Promarker colours appear perfectly even, with no streaking.