The popular Zig Clean Color Real Brush pens are perfect for quick lettering, illustrating, sketching, blending, designing and cartooning. Easy to create both narrow and wide lines, as well as color gradation effects! Create watercolor style effects when used with pens like the Zig Waterbrush. Water-based dye, Odorless, Xylene-free. Set of 6 includes : Black, Purple, Persian Blue, Green, Bright Yellow, and Carmine Red.