An irreplaceable companion for electrical engineering. The flexibility of the material and noticeable yellow colour are recognisable features of these single sided self adhesive labels for convenient marking of cables, connectors, components, control boxes. As the labels are easily removed, errors in marking or subsequent changes can be accommodated. The surface finish of the labels makes them tough, abrasion, weather and water resistant. Manual inscription by ballpoint, marker or ink pen is easily carried out on site within the black borders, which highlight it and set it apart from its surroundings. As the labels are supplied in sheets, this facilitates different people/departments having access to their own supply.