This Duotip marker set offers you a great selection of colors to create quick urban sketches. With these conveniently packaged markers, you can replicate the perfect building, street view, or any other cityscape on the go without needing to carry paint. Brilliant colors based on dye and gum arabic - a practical marker with two different tips. Adheres well to watercolor paper, drawing paper, and cardboard. Store horizontally to keep the dye evenly distributed in the marker.