Art Sponges — Made of the same semi-absorbent material used in Sofft Covers, Art Sponges have been specially formulated for art and craft applications. They hold and release just the right amount of material, and are non-abrasive for smooth, uniform results. These hand-held sponges can be used for applying color, quickly blocking in large areas of color, blending colors and materials, manipulating paint, creating backgrounds, underpainting, double and triple loading colors, sponging out watercolors and acrylics, and building up smooth layers of color. Art Sponge Bars Mix contains one each Round, Flat, Point, and Wedge sponges.