SUPERWORM Super Flexible Ultra Efficient Copper Wire by ACER Racing (16 AWG 20 ft) World Famous SUPERWORM wire by ACER Racing: the ultimate in efficiency and flexibility for your high power applications Choose from 8, 10, 12, 14, 16 or 18 Gauge wire: up to 1680 strands of extremely flexible copper wire with a silicone jacket Used in many applications by Fortune 500 Companies and from Aerospace to Hobby