Finally, a thin line in classic black color and waterproof ink (when applied with a wet brush, it lifts an imperceptible amount of color, it does not affect reading at all and minimally affects watercolor painting). Comfortable, glides on the page, although it is not suitable for very cheap thin paper, and generally takes its time to dry and become waterproof. It is worth it, especially for the 0.38 line, which is not easily found in Greece.