The Helavia Twin Cable Markers contain an appropriate marking design because of its thin wall that attaches to the cable. The markers are protected by a coating to toughen it up. They are printed in yellow which is essential for contrasting well with black print and to prevent soiling. These markers print alphanumeric graphic characters in several lines, axial or longitudinal positions. Furthermore, the manufacturers allow its customers to choose length and colors for the marker that meets their demand.