Crayola Watercolor pencil in assorted colors and has wood barrel with 3. 3 mm lead. Pencil can be used in a variety of dry/wet techniques and watercolor effects can be attained with the addition of water, sold as 12 per pack. 12 Assorted Colors. Provides watercolor and drawing effects. 3. 3-mm. Pre-sharpened watercolor pencils. 12 rich, vivid colors. AP certified nontoxic. Add water for watercolor effects. Made from reforested wood. Use for dry and wet techniques. Use as traditional colored pencils or blend colors with a few drops of water to add watercolor effects. Watercolor woodcase pencil provides watercolor and drawing effects, can be used for dry and wet techniques, has 12 assorted colors. Safety Data Sheet