The Aqua Pen allows you to draw with strong colors and sharp details. Pen is dual tipped with a contour tip on one end and a flexible brush on the other end. Get brilliant color from the high quality lightfast low-odor water-based ink. Ideal for watercolor painting on watercolor paper. This 3x6. 75x. 5 inch package contains six dual-tipped aqua pens in assorted colors. Conforms to ASTM D 4236. Comes in a variety of colors. Each sold separately. Imported.