Absorbent, very soft kneadable eraser lifts off charcoal and pastels. The gum eraser rubs out graphite leaving a fine "sand" to clean further as you brush it off Use for blending and smudging, too! The moldable eraser easily stretches around a finger for blends, or use the rubber eraser to create translucent effects on dark areas Kneaded erasers leave zero dust, and can clean off film and finished artwork. The rubber art eraser is ideal for erasing wide stretches or entire drawings The putty eraser is excellent on chalk -- lets you clean, correct and lighten shading with ease. The art gum eraser is the perfect drafting eraser for engineers and architects Our combo pack of erasers is an excellent resource for artists, students and professionals alike.