Colored pencils offer the same drawing characteristics as regular pencils but include the bonus of color. They're produced in many hues because their colors cannot be mixed on palette to produce different tints or shades. However, colored pencil strokes can be overlain on each other to achieve a myriad of effects. Woodless pencils are thick pencils with no wood casing but a layer of lacquer to facilitate clean handling. Useful for broad, expressive work and shading over incised detail or where a visible paper tooth is desired. Some colored pencils are water-soluble. These watercolor pencils use a water-soluble binder, which makes them suitable for subtle wash techniques similar to watercolor painting.