Brush and Pencil Powder Blender is a dry lubricant that helps blend pencils. It works best with oil-based pencils but can also be used with wax-based pencils. Sofft mini applicators or a short hair bristle brush are often used with the pencil blend, but any kind of sponge would work. With smaller sponges you can achieve the most accurate blending which is why the mini applicators are popular