<ul> <li>TOMBOW-Dual Brush Pen Open Stock</li> <li>This dual brush pen has a versatile and flexible nylon fiber brush tip on one end that creates medium or bold strokes by simply changing brush pressure</li> <li>The fine tip on the other end is for smooth straight lines or writing</li> <li>The water based ink is blendable, odorless and non-bleeding</li> <li>Acid free and non-toxic</li> </ul>