This POSCA PC-8K Marker contains water-based pigments which can be blended when wet or overlaid when dry. It's a great option for adding colour to artwork, signage, posters and more and has a broad chisel tip for adding lines that can be read from a distance. This marker has a broad chisel tip measuring 8.0 mm can both cover large areas and draw neat curves.You can use it to mark on paper, metal, glass, fabric, minerals, canvas, ceramic, wood and plastic.The water-based ink is highly pigmented for vibrant results.It has a round, easy to grip barrel.You can blend these markers when they are wet or overlay them when they are dry.This marker contains fluoro yellow coloured ink.POSCA tips can be removed and washed by rinsing it under cold water or leaving it to soak overnight.The ball inside the barrel mixes the paint, giving an even consistency, while the cap provides a tight seal ensuring protection and longevity of the tip.This marker is ideal for making bold markings or sign writing for both professional and personal use.