Art 101 3-Pack Watercolor Brush Pens includes 3 color themed packs - rainbow, pastel, and jewel tone - providing a variety of colors to choose from when creating your next watercolor creation! Our pens have the versatility of traditional watercolor packed into an easy-to-use pen. Each pen includes pigmented water-based ink that is released through a flexible nylon brush tip. Use the pens undiluted for vibrant, saturated colors, or blend with water for delicate watercolor effects like color washes or gradients. The brush tip allows you to add precise color to your paintings, and best of all, the process is mess-free and easy to clean up. Use the water blending brush which has an easy-to-fill water reservoir, eliminating the need for multiple paint brushes and water cups. Simply fill the reservoir with clean water, screw the lid back on, and apply light pressure to the brush to release water and blend your colors. These pens are great for painting on-the-go, wherever creativity strikes!