Like Derwent Sketching Pencils, Watersoluble Sketching Pencils are perfect for free style sketches and bold line drawings. The extra wide strip is produced in three versatile degrees, yet Watersoluble srtips have the added feature of dissolving instantly in water, making it easy to build up tone or create line and wash sketches. Round glossy black barrel with a distinctive blue angled dip and white imprint. 8 Ply pencil (8 mm diameter) with a 4mm strip. These pencils have a smooth strip for natural fluidity with water ideal for wash and line sketches.