Helagrip markers are used for labeling wires and cables before connecting them. The internal profile allows for one size marker to be used for several different wire diameters. The special arrow-shaped design prevents the markers from twisting relative to each other, making it much easier to read multi-character labels. The material's flexibility ensures a good grip of the markers on the wire. Ideal for use in control panel and distribution box assembly, mass transport, and telecommunications. Markers are available in the international, resistance color code, as well as in yellow with black printing. Standard characters include numbers (0-9), letters (A-Z), and standard electrical symbols. Other symbols are available upon request. For smaller diameters, we recommend using the AD applicator or TJC installation tool.