Brush Pen: Extra Thin Tip, Pigment Ink, refillable

Zebra Disposable Brush Pen - Extra Fine Tip - Japanese Kawaii Pen Shop - Cutsy World

Kuretake Zig Cocoiro Letter Pen Refill - Extra Fine Brush, Royal Blue

Pentel Arts Color Brush with Pigment Ink, Medium Tip, Black Ink, Pack of 1 (FP5MBPA)

Sennelier Watercolor Ink Brush Pen Sets

This nylon brush tip pen produces thick and thin lines allowing for artistic freedom. The water-based pigment ink is lightfast. Ink refill cartridges are available.

Zig - Cartoonist Brush Pen No. 22 - Refill - Black

Brush Pen: Extra Thin Tip, Pigment Ink, refillable | XFP5F by Pentel

Kuretake Bimoji Fude Pen - Artist & Craftsman Supply

The Pentel brush pen is perfect for creating fine to board lines in a single stroke. Though created primarily for use in Manga drawing and oriental

Pentel Refillable Pocket Brush Pen - with 2 Gray Ink Cartridges - Black Barrel

Perfect for designers and illustrators, drawing, manga-style artwork and calligraphy. Easy to refill with a Pentel FP10 ink cartridge. Create fine to broad lines with a single stroke. High quality permanent pigment ink that is both water and fade-resistant. Durable synthetic bristles that retain their shape. Available in a range of ink colours. Supplied with 2 ink refills.

Pentel Fude Brush Pen, Extra Fine (xfl2f)