At Kuretake, they’re always looking for novel ways to put ink on paper. This unique brush pen takes its design cues from the cosmetics industry (hence the name ‘Ai Liner’), using a superfine applicator that’s usually meant for eyeliner. But instead of makeup (and please, don’t use these pens on yourself!) they’re filled with Kuretake transparent drawing inks.

Perfect for drawing, sketching, and many styles of calligraphy, the new Ai Liner comes in your choice of four colors: black, grey, sepia, and brown. Sold individually. Made in Japan.