DC Extension Cord 2.1 mm x 5.5 mm DC power extension cord, as extension for video camera and other electronics. Ultra High QualityAll copper core, safer electricity. High toughness, high-temperature resistance, antifreeze, safer and more secure. High Elastic JacketCan withstand 10000+ repeated bending and unpluggingDurableElastic PVC outer cover, resistant to pulling, not easy to break