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 non-toxic. Draw, sketch design and empower your creativity with artist products from Lyra. The 24-color set includes 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. Content may vary. ACMI Certified, Conforms to ASTM D-4236.