Each carbon paper is made of quality wood pulp paper, works well to transfer patterns and the lines remained clear. The writing effect of carbon black paper sheets is clear, the color is obvious and the lines are continuous, they can be reused several times. Uniform charred surface covering, clear copy effect, continuous lines, blue/black copy police, ideal for manual work, painting and transfer. Carbon tracing paper simplifies crafts and crafts, reduces stress and makes your manual work fun and pleasant. Black/blue carbon papers can be used on paper, wood and other artistic surfaces, etc. For drawing, invoicing and the office, etc.