Adding colour to your artwork is easy, anywhere and anytime with Koi®! This extensive collection helps you create the most vibrant illustrations, hand lettering pieces and watercolour paintings. The Koi Coloring Brush Pens with flexible brush tips offer smooth colouring and writing in a variety of bright shades. Use the convenient Koi watercolour sets to paint stunning watercolour paintings in your studio or on the go. Together with the Koi refillable water brushes, you can create the most beautiful colour transitions and watercolour effects. Combine your Koi colours with the sturdy mixed media paper pads for the best results. Koi mixed media paper is also suitable for various other types of pens, pencils and paints.