Design 12 Assorted Specialty Pencils in a Box. Aqua-Sketch (Medium - Soft) - Pencil with a water-soluble core. Wonderful watercolour effects can be achieved by using water and a paintbrush. Charcoal (Hard - Medium - Soft) - The charcoal pencil allows you to work cleanly and accurately. Sanguine (Oil) – Pencil with a reddish core, particularly suitable for portraits and life drawings. Sepia (Light - Dark) - Pencil with a dark-brown sepia core, suitable for sketching and drawing landscapes. White (Soft) - Pencil with a white, chalk-based core, for applying contrasts and toning down colours. Blurrer - A drawing instrument to smooth out chalk, etc., thereby creating shade and 'silkier' effects.