Feature:1. 3 Sandpapers: Sandpapers in this sketching tool set can sharpen the tip while cleaning the pen, you can grind the pigment into a powder.2. Premium Paper: These blending stumps are made of premium paper, which can be easily sharpened with sandpaper sharpen pads blocks and you use a napkin to wipe it away.3. Wide Application: These sketch drawing tools are suitable for smudging, blending or smoothing pastel, charcoal, chalk and pencil artwork.4. Practical Tools: These blending stumps can soften the lines and mix colors, create shadows and achieve hazy view effect.5. Perfect Gift: These sketch drawing accessories are perfect gift and practical tools for children, students, artists, sketch drawing beginners, learners, and so on.Specification:Item Type: Sketch Drawing ToolsMaterial: Paper, EraserSandpaper Function: Pencil, Color Chalk, Sketching Paper and Pencil, SharpeningEraser Size: Approx. 4.4 x 3.7cm / 1.7 x 1.5in ( Manual Measurement, Slight Error May Exist )Pencil Extension Tool Length: Approx. 13.4cm / 5.3in ( Manual Measurement, Slight Error May Exist )Blending Stumps Length: Approx. Large: 14.9cm / 5.9in. Medium: 15cm / 5.9in, Small: 12.4cm / 4.9in ( Manual Measurement, Slight Error May Exist )Sandpaper Size: Approx. 16 x 2.9cm / 6.2 x 1.1in ( Manual Measurement, Slight Error May Exist ).Package List:3 x Eraser3 x Pencil Extension Tool18 x Blending Stump3 x Sandpaper