Colorona Premium Double Ended Alcohol Based Colorless Art Marker， Superior Ink Graphic Dual Twin Tip Blend Able Permanent Sketch Pen， Fine and Brush Point<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Blend colors for stunning effects such as 3d， smooth transitions， highlighting shading and blending</li><li>Perfect for any use， manga， cartoon illustration， sketching， fashion design &amp; adult coloring books</li><li>Suits every one - artists， illustrators， architects， kids， teens， adults， beginners and students</li><li>Smart design provides a variety of line widths by increasing/reducing pressure and twisting the nib</li><li>Next generation blender pen with unique ergonomic design for limitless creativity</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31GWWiXJbvL.jpg" noproxy>