Feature:1. This set meets most of the needs of sketching, including carbon pens, paper rollers, and sandpaper.2. The charcoal sketch drawing tool can be used to paint and texture, but also to create a blur effect or use as a brush.3. This art blender is suitable for mixing and smoothing pastels, charcoal and different artworks.4. Double pen tip, excessive light and dark junctions, creating a hazy effect, can be used to make shadows or dark parts.5. Sketch without sharpening the drawing pencil, take it out and use it directly, convenient, environmentally friendly and safe.Specification:Item Type: Charcoal Sketch Drawing Tool.Commodities Include: Carbon pen, sandboard, paper penMaterial: Carbon, paperQuantity: 10PcsSandboard Size: Approx. 10 x 2.5cm / 3.9 x 1in (there is a slight difference in manual measurement)Paper Pen Size: No. 1: Approx.15.8cm / 6.2in, No. 2: Approx. 14cm / 5.5in, No. 3: Approx.13.2cm / 5.2in, No. 4: Approx.12.5cm / 4.9in, No. 5: Approx.12.5cm / 4.9in, No. 6: Approx. 12.2cm / 4.8in (there is a slight difference in manual measurement)Carbon Pen Size: Approx.14.3cm / 5.6in (there is a slight difference in manual measurement)Package List:1 x Sandboard6 x Paper Pen3 x Carbon Pen