Made of compressed charcoal Set of 6 Pre-sharpened Woodless Charcoal Pencils which included 3 soft, 2 medium, and 1 hard. Smooth blending with rich and dark pigmentation is Ideal for sketching, shading, detailing, layering, and attaining tonal values. Perfect substitute for compressed charcoal sticks Lacquered coating on each pencil for clean handling and comfortable grip Both broad and fine strokes can be attained by placing the pencils at different angles. Can be easily sharpened with a regular sharpener, blade, or sandpaper block. Blending stump - Soft white paper pointed on both ends. Due to their soft, powdery consistency, pastels and charcoal can be easily wiped, either with your fingers or paper blending stumps. Simply reshape dirty ends with a normal sharpener to guarantee further clean blending. Set of 5 Stumps. Stumps are easily kept pointed with a sandpaper block pad. kneadable eraser