Faber-Castell Multimark medium width pens with integrated erasers. Not only ideal for permanent marking - they also write perfectly on most flat surfaces. Depending on the required purpose the pens are available in various permanent and non-permanent ink colours and the widths S, M and F. All Multimark inks dry within seconds and leave sharp edges. However, should there be a need to remove some of the marks, the integrated special eraser can even fully erase permanent marks from all smooth surfaces.