Using gentle pressure, a fine deep-cleaning powder is produced which will absorb and remove graphite, charcoal and dirt without damaging the surface of the paper. A dabbing motion is the best technique and this will create effects similar to a brush or blender. This product is very soft and will not leave a residual film on the paper. Use to make shadows and special effects. Factis erasers are safe, harmless and non-toxic. Size: 5.5 x 2.4 cm