With Prang Brush Pens you can create dazzling effects with the flexible, easy-flow tip. Express yourself with the variety of artistic brushstrokes created by the Flexi-Tip nib. Richly colored ink is archival safe and acid-free. Set comes with 12 vivid classic colors. Washable ink, AP Certified non toxic. Put Prang in a child"s hands and see what"s on their mind.