Crayola® So Big® Washable Watercolors are available in an oversized semi-moist oval pans in a plastic box designed for younger children as is the paint brush that is included, making it a complete ready-to-use set. Oval pans snap out for economical replacement. Reformulated colors retain richness without muddying or fading. Non-toxic, AP Seal.— Refill, 4 pan, 4 colors