This bottled black fountain pen ink from Kaweco is our standard recommendation when we're asked which black to buy. It's very dark, it handles well on all kinds of paper, and it can be used effectively for both writing and drawing. It is a particularly good drawing ink because blending it with water results in beautiful cool gray tones. Most black inks are warm gray when blended with water, which is not very useful for most drawing applications. With Kaweco Pearl Black, a little water turns a line into a convincing shadow area. Load your pen with this, bring a bit of water, and you have a complete nature or urban sketching kit. Made in Germany.