3/8" EHS Strand, 5000' Reel Messenger Wire, also known as Strand is used to support the cable and lashing wire for Aerial deployment. It adds strength and rigidity to a cable, keeping the cable from sagging when running through the air and making it efficient to run over long distances. Essentially, messenger wire provides the backbone so that the cable carrying signal isn?t strained. At the proper tension, the aerial system has a high degree of reliability and will protect the system from trees, branches as well as supports the cable during high wind loads and icing conditions.