Blending Stumps and Tortillions Set, 25 Pieces Sketch Drawing Set with Kneadable Eraser, 2 Pieces Sandpaper Pencil Sharpeners for Students and Artists Package Includes 8 * Blending Stumps, 12 * Tortillions, 2 * Sandpaper Sharpening Blocks, 1 * Pencil Extension Tool, 1 * Sponge Cloth Stumps and Tortillions are made of soft compressed paper, are excellent for blending and smoothing pastels, charcoal, graphite and other artworks; Useful painting tools for softening lines, blending colors and creating shadows, hazy effect, useful for your sketch drawing Useful Drawing Tool You can use these tools to draw texture to create a hazy effect or you can use them as a brush; And there are erasers, useful for drawing Various Sizes The sizes of tortillion are 1, 2, 3, each size 4 pieces. Stumps sizes (fixed): 1, 2, 3, 4, 5, 6, 7, 8, they can be sharpened with sandpaper sharpeners; Sandpaper sharpening block sizes 6.1*1.1 inches (15.5*2.8 cm) Wide Application The drawing accessory kit is a good choice for making better drawings and a good gift for children, students, artists, sketch drawing beginners, learners, etc