A very good weathering kit for beginners, since it contains six colours and costs as little as one or two other pigments would. Of course quantity is small, but if one needs to finish only a handful of models, they don't require huge amounts of any of those pigments. Kit is water-based so it can be dissolved in water and applied like a wash, if needed. The "instruction" doesn't say much about how to use the kit properly, but there are plenty of guides and videos on the Internet.