Koh-I-Noor Wax Aquarell Pencils are made to a high quality with excellent properties. These watercolour pencils can be used dry as other artists' coloured pencils, or with a little water to create special effects or with a wet brush as watercolour paint. These pencils are large with a 6mm Diameter lead and 11mm diameter wooden barrel, available in two different sets which both come with a special large pencil sharpener and brush with the set of 24 having a large graphite pencil in addition.