Manufactured with ultra-flexible WindyNation's Cable 100% fine stranded PURE COPPER cable for high amperage applications Copper cable lugs are tinned coated and utilize a closed end design for corrosion protection Polyolefin heat shrink tubing applied to form a protective seal. Includes one black cable and one red cable. Simply select cable length and cable lug mounting hole diameter for cable ends. WindyNation's battery cables are manufactured using our Welding cable, which is a highly flexible industrial grade electrical copper cable. WindyNation's battery cables are excellent for battery bank wiring, inverter cables, grounding cables, RV & car wiring applications, golf cart wiring, and any other application where a highly flexible pure copper conductor is required. Our battery cables are available with pre-attached cable lugs with 5/16" or 3/8" diameter mounting holes. Polyolefin heat shrink tubing is applied at the cable lug attachment point to form a protective seal.