BLACK BRUSH PEN] ai Liner Ultra Fine Brush Pen(ED100-010) Inspired by portable cosmetics, this compact brush pen features a brush tip that is also used in actual eyeliner pens. Its flexible, ultra-fine point is perfect for loose sketching and fine detail work. The pen filled with waterproof pigment-based ink that is safe to color over with water-based paints and markers. This is a brush pen that is fitted with an ultra-fine brush tip similar to those found in eyeliner cosmetics. The ultra fine brush #34;ai Liner #34; is elastic and has excellent maneuverability and control, and so it is perfect for delicate expressions in illustration as well as hand lettering. Water-based pigment ink. Product Dimension : 9×9×120 mm Package Dimension : 9×56×215 mm Product Features : The ultra fine brush #34;ai Liner #34; is elastic and has excellent maneuverability and control, and so it is perfect for delicate expressions in illustration as well as hand lettering. Ink Type : waterbased pigment Country of Origin : JAPAN