These super-flexible battery cables are computer-grade with 1,660 strands encased in a silicone jacket. They house over 9 times the wire of stock cables which have only 180 strands of wire. The number of smaller gauge wires in the cable makes it much more flexible and capable of delivering more current. The lugs are twice the thickness of standard lugs and are made from 99% pure electroplated copper, then 24k goldplated to provide a positive connection with greater conductivity. Kits contain the lengths needed for specific applications.