The soft fiber pen tip has good elasticity and can draw 0.5mm fine lines or lay colors on a large area. It can be washed clean without residue. One end is rounded to hook the line, and the other end is slanted to scan the color, achieving a three-dimensional illustration that combines line and surface without changing the pen. Suitable for children's graffiti, hand book layout, poster POP, silky cardboard, kraft paper, fabric labels and other multi material writing. Gradient blending: First, use a slanted head to lay the base color, then dip a small amount of water on the edges with a round head and gently sweep to achieve a natural transition. Draw patterns on pure cotton canvas bags, air dry naturally, iron at 120 ℃ to set the color, and wash 20 times without fading.