Lyra artist supplies are superior products for serious artists of all ages. Lyra Aqua Brush Duo is a pen with a brush-on effect especially made for artists, designers, and hobby painters. The unique tips are extremely stable. There is a broad tip on one side which allows brush-like techniques. Fine lines and drawings are easy to do with the tip on the other side of the Aqua Brush Duo. With this brush pen pictures and layouts can be done to perfection. The ink is water based and AP certified nontoxic. Draw, sketch design and empower your creativity with artist products from Lyra. These coloring pens are highly durable and can be used repeatedly and for extended periods of time without drying up, so you can create beautiful works of art again and again. Apply your colors to a shiny surface and mix them with water and a paint brush to create smooth gradients and dreamy washes to your drawing and calligraphy designs. You can even add watercolor to these dual art pens for added effects. With a large selection of colors to choose from in this set of dual brush pens, you can easily mix and blend your favorite colors into any shade your work calls for. Colors include: Light Yellow, Lemon Yellow, Orange, Pale Geranium Lake, Deep Carmine, Light Blue, Prussian Blue, Permanent Green, Yellow Still de Grain, Van Dyck Brown, Venetian Red, Black, Cadmium Yellow, Cadmium Yellow Deep, Saturn Red, Rose Carmine, Cobalt Blue Light, Cerulean, Night Green, Chrome Green, Deep Sepia, Cold Ochre, Pompeian Red, Burnt Ochre, Chrome Yellow Light, Chrome Yellow Deep, Raw Sienna, Light Carmine, Blue Violet, Olive Green, Viridian, Brown Ochre, Vermillion, Indian Red, Cold Gray Light, Cold Gray Medium.Details:Includes assorted colorsDual tips (broad and fine)36 marker pensWater-based inkNontoxicWater soluble