Colour pencils are ideal tools for children in learning different artistic techniques, such as outlining, hatching, shading and so on. The 6mm lead contains 4 colours which blend to create a rainbow blend. The intensity of the colour depends on the pressure applied while drawing. Children often put pencils in their mouth, so it is very important that the products do not contain harmful ingredients. Wood varnish on certain pencils may contain heavy metals, solvents and plasticisers that can be swallowed. Therefore ökoNORM use only unvarnished wood in their pencils. The natural wood has a pleasant smell and also possess antiseptic properties.