As someone who frequently dabbles in arts and crafts, i highly recommend this marker refill. Based on my experience it offers excellent coverage and stays permanent on a wide range of surfaces, including ceramic and light pastels. The color is rich and vibrant, and the 30 ml quantity lasts for a decent amount of time .The only con is that it might take a bit of practice to control the flow of the marker, but once you get the hang of it, youll be able to create beautiful, long-lasting masterpieceSee full review