Product Description ClickArt Retractable Marker Pen 0.6mm Assorted 6Pk ClickArt Retractable Marker Pens feature a capless design and water-based ink technology that absorbs the moisture in the air, which keeps the ink from drying out. ClickArt is perfect for journaling, color coding, drawing and everyday writing. Available in .6mm tip pens. The 6-Pen Set includes red, yellow, light green, light blue, lavender and black.