Get endless versatility when drawing or illustrating with Ecoline DuoTip Markers. They have two nibs — a slim bullet and a broader chisel tip — for alternating between fine lines and broader strokes. Filled with concentrated, transparent watercolor paint in brilliant hues, they work well on watercolor paper, drawing paper, and cardboard. - Royal Talens Ecoline DuoTip Markers - Basic, Set of 12Ecoline wc Duotip Marker, BASIC 12SET - This set includes one of each of Deep Yellow, Lemon Yellow, Scarlet, Magenta, Light Orange, Sky Blue Cyan, Sepia, Light Green, Turquoise Blue, Cold Grey, Blue Violet, and Black.