Professional sketch sets: set of pencil refill of various specifications Rich color gradation black, white and gray: Can be used to outline the line draft of the picture in the early stage, and the middle can be usedfor the coloring of the black and white picturelt can be used to adjust the details of the picture later, etc. Professional sketch charcoal pen: Selected bold charcoal pens, black and thick, with the difference between soft, medium and hard You canstart with the painting with a softer charcoal, because it is easy to erase,lt can be corrected repeatedly without damaging the drawing paper. Use a harder charcoal to modify the details. Rubbing paper, smudge brushstrokes: The Rubbing paper pen can be used as a brush,Smear at the junction of light and dark to enrich the three-dimensional effect of the work. Are eraser + painting eraser: Art Eraser: moderate hardness and good adhesion Painting Eraser: Wipe gently without leaving a trace. Art eraser Moderate softness and hardness, excellent adhesion, can be pinched at will,so that the transition of the modified part of the work is even. Iron box packaging, easy to carry: This set of daily practice/going out sketching/gifting is enough Get it all