Derwent Burnisher & Blender Set for Color Pencil - This set is a terrific idea! It comes with tools that you can use to blend and burnish your colored pencil drawings. Included are two colorless blenders for blending wax based color pencil drawings, and two colorless burnishers for adding shine to the finished work. You also get a vinyl Derwent eraser and a pencil sharpener. These pencils used together can add depth to your colored pencil artwork!