Royal Brush-Clamshell Art Sets: Pastel Pencil. Essentials by Royal & Langnickel are the must have artist materials to begin exploring your artistic side! This 9x8-1/2x1 inch package contains four willow charcoal pieces, four pastel pencils, three graphite pencils, four soft pastel squares, one eraser and one double barreled sharpener. Conforms to ASTM D4236. Imported.