Hundreds of strands of highly efficient copper wire are used to make Superworm Silicone wire. This is a very flexible wire and can be used for high performance racing applications. Comes in lengths from 10ft (5ft black (127 cm), 5ft red (127 cm) 16 AWG super flexible silicone wire) to 100 ft (50ft black and 50 ft red) to 200 meter rolls. Need all red wire or all black wire? No problem, just make that selection from the drop down menu under "Red only" or "Black only".