Kuretake Metallic Brush Pen comes with a very soft flexible brush tip in two metallic colors, silver and gold. To start this pen, untwist the body from the tip, remove the yellow plastic ring separator and screw the body back in to start the ink. Squeeze the body of the pen on the sides where it says "PUSH" to encourage the ink to flow as you are writing with the pen. This metallic brush pen comes with a synthetic bristle brush tip giving you expressive strokes. 

Synthetic bristle brush tip
Squeeze the sides of the pen to encourage the ink to flow
Shake pen before starting
Water-based pigment ink