Derwent Blender Burnisher Blister Set If you are working with coloured pencils and want to create a subtle blend of colours then the Derwent Blender Pencil is the ideal accessory. It is a soft colourless pencil made from the binder used for making coloured pencils and allows you to blend two or more colours together to create a new colour. At the same time it physically mixes and smooths the colours so individual strokes and hard edges are softened. Colourless pencils ideal for blending different colours to create hues and tints. The blender pencil mixes, smoothens and softens strokes. The burnisher pencil provides a rich polished finish. Blister pack containing 2 x blender pencils, 2 x burnisher pencils, eraser and sharpener.