Solid soft drawn bare copper conductor. Expanded polyethylene (Foam Skin) with an external layer of solid, high-density polyethylene insulation, with a distinctive color code, which conforms to telephone industry standards.The conductors are twisted in pairs and then cabled together to be round. The core is filled with an ETPR compound. Corrugated 8-mil thick aluminum tape shield applied longitudinally over the inner jacket. Black, linear, low-density, high molecular weight polyethylene jacket. REA/RUS PE-89 - ANSI/ICEA S-84-608 - ASTM B3, B258. Picture May Not Represent Actual Cable and is Only Used As a Representation Please Refer to The Specifications for Product Accuracy. Feedback will be left as soon as feedback is left for us.