The ZIG Clean Color Real Brush pens have a super smooth nylon bristle tip and come filled with water-based ink. It feels almost like having a regular painting brush in your hand, but without the hassle of getting paint everywhere. The ZIG Kuretake Clean Color Real Brush pens are available in 89 different colors including a good range of greys + a colorless blender. The colors easily blend together and can be mixed with water to create watercolour effects. Perfect pens for illustrations, sketches, brush lettering and bullet journals. Scroll down to pick your colors.