Futayaku Twin Brush Pen Hard (Black/Grey)
The pen is double-sided with a black ink felt tip brush on one side and a gray ink brush on the other side. It is perfect for outlining and shading and is fairly water-resistant. Appropriately, it is called "Futayaku," which means "two uses" in Japanese. The two hard brush tips make it is easy to create controlled brush strokes, which is sometimes challenging with softer tips.
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