Keadable, shape-able eraser. Great for picking up charcoal, pastels, and graphite. Shape, blot, reshape. Does not leave eraser dust behind, so no smudging from sweeping them away. A favorite with dry media artists.
From the manufacturer:
Kneadable erasers, unvulcanized rubber eraser with great adsorption power. #1 Eraser for artists, suitable for Fine Arts. For removing charcoal, graphite and pastel chalk strokes. Size of eraser: 3.7 x 2.8 x 1 cm.