The fully water-soluble lead of the Goldfaber Aqua watercolor pencils have vibrant colors, optimum opacity and good lightfastness. High-quality materials and innovative production technology provide high tip-breakage resistance with SV bonding along the 3.3mm lead. Using a wet paintbrush drawings can be transformed into stunning watercolor paintings. Dry drawing techniques of colored pencils can also be used with these watercolor pencils. These hexagonal pencils are easily sharpened with all common sharpeners.