This posca marker pen is the perfect way to make your mark the water based pen produces vibrant colour that can be used on almost any surface including fabrics glass metal paper card wood and stonethis acid free pen is suitable for a variety of applications such as outlining scrapbooking filling in colour and producing large scale art unique opaque ink makes it possible to overwrite other colours and produce vibrant colours even on the darkest surfacesthis is the perfect way to add c