[Wide Application]: Telephone Cable Line Wire with standard RJ11 6P4C connectors at both ends, together working with phone line splitter and in-line coupler, used for Telephones, Modems, Fax Machines, and Answer Machines, etc. [Excellent quaility]: Core of wire is made of Pure-Copper 26AWG, which is much better than ordinary Copper-clad-Steel, and the contacts of plugs is coating with thick gold to plate. These process is to ensure the great connection and quality, to make sure you join the Excellent communication by phone calling. [Durability]: Heavy duty and premium quality cable cord can sustain in rongh weather to work well and duable for everyday. [Process Control]: Manufacture is under control for Quality Assurance, the process from incoming material check, in-process assembling and testing, Outgoing Quality Audit, to ensure the product quality. [Packaging]: Telephone cord 1pcs, In-line Coupler 1pcs, Cable Clip Screw 30 pcs, that is to satisfy you purchasing. Telephone Extension Cord Phone Cable Line Wire 50 FT, Black, with Standard RJ11 Plug and 1 in-Line Couplers and 30 Cable Clip Screw for Calling Communication