Super Flexible - Our 16 Gauge Silicone Wire, Made of Soft Silicone for jacket outside, and include 252 Strands of 0.08 mm copper wire inside which makes it ultra soft and flexible. Super low impedance for a highly efficient connection Easy Use - This 16 Gauge Silicone Wire comes wrapped around a hard spool that makes dispensing convenient - 50 feet Total - Separate 25 feet Black and 25 ft Red. 2 jacket colors make for quick and easy to distinguish the polarity, also can be used as a single wire. NOTE:The red and black wires are separate wires, wound around the same spool, the red and black wire are not connect Safe and Reliable - This Silicone Wire are high temperature resistant 392 which makes it more safe and reliable. It can also be used steadily in low temperature environment, in extreme cold -140. Also has a better anti-oxidation performance, reduce the producing of heat, which make it long service life. (Temp Range: -140 to +392, Rated Voltage:600 volts) Multi-Use - O