The HellermannTyton 561-00756 Wire Labels & Markers Clip On Cable Marker 2-2.8 mm blue is a cable marking solution for use with standard cables, such as control, power, audio, video, and data cables. It features a blue clip-on arrangement which is fit for use with diameters of 2-2.8 mm and creates a secure self-adhesive seal on the cable. The marker includes a security loop which is used to hold the label permanently in place for optimal durability. Additionally, this marker is designed to be printed with a name, code, or logo via laser printers, which makes it easy to identify cables.