A watercolour pen is for creativity with precision. And without any mess. Simply fill the watercolour pen called Clear with water and use it with the watercolour pencils from Monograph (461892005) to blend and fade the colours in your illustration. Your artwork gets more detailed and it opens up a whole new world of colouring. You get a pack of three watercolour pens, so you don’t have to clean the pen before using another colour.