Manufactured from 4-gauge, 1,650-strand tinned copper wire with a super flexible silicone jacket Unique lug design (99.9% pure electrolytic copper) provides a positive connection with greater conductivity and dependable service These cables will deliver more cranking power with less voltage drop than any cable on the market today Available in black Kits include cables for required stock applications Made in the U.S.A.. BLK BAT CAB KIT65-79 FL