PanPastel Ultra Soft Artists? Painting Pastel Weathering & Rust Set – PP30701Dry colors are essentially dustless, go on smooth as if like fluid, are easily blended for an infinite range of colors and effects, and are erasable. Apply large blocks of color quickly and build up multiple layers without overfilling the paper?s tooth. Create intense or delicate marks by varying pressure with Sofft Tools. Combines well with other art and craft media. Pans thread together for stacking, or can be placed in the palette trays, for easy storage and organization. Each pan contains 9ml (0.30 fl. oz.) of color, 40% more than the average pastel stick.