Monoprice 100936RJ11 6P4C Reverse Landline Telephone Cable, 50-Feet for Voice Telephone patch cable Replace shorter cables with this extended length cable Reserve wire connections for voice lines Reverse cables reverse the right to left order of the pins inside the connectors Flat Cable Body Silver Satin Color4 ConductorsRJ11 Connectors Monoprice continually strives to improve its product line to bring our customers the best products available