Cal Test Electronics CT4403 Test Lead Wire Color Pack offers six colors of two-meter long, 18AWG (0.75mm2) wire with each lead featuring highly flexible silicone over 195 strands of bare copper center conductor. The CT4403 pack is ideal for Do-It-Yourself (DIY) test leads, patch cords, and test fixtures. As with a true test lead wire, the silicone jacket is fabricated thicker than standard hook-up wire and includes a white inner layer for a wear or damage indicator. The six different colors allow easy tracking of multiple connections.