Tortillons are small, rolled paper tools used in drawing and sketching. They are typically made from tightly rolled paper and come in various sizes. Artists use tortillons to blend and smudge pencil or charcoal, creating smooth transitions and soft edges in their artwork. These blending tools are especially popular among artists who work with graphite, charcoal, or pastels. By gently rubbing the tortillon over the surface, artists can achieve a range of textures and tones, enhancing the overall depth and realism of their drawings.