Russian-made and professional Yarka St. Petersburg Watercolor Pan Sets uses the liquid poured process which preserves the integrity of each pigment and results in semi-moist pans that instantly respond to the wet brush.  These watercolors are made with the finest raw materials and pigments, and have the highest light and color fastness. Available in sets of 12, 22, and 24, these are great watercolors that come in elegant cases.