Bright Lights: The rainbow is at your fingertips - choose from these brilliant colors and bring your ideas to life. Whether it's a coloring book or a masterpiece in the making, your artwork is sure to shine with these brush markers. Multi-functional: Double-headed markers are very suitable for drawing, coloring, marking, sketching, designing, DIY card making, etc. High-Quality: The Twin Marker have smooth writing,the ink dries quickly and does not smudge, built to last against fading.