BATTERY CABLE ASSEMBLIES are manufactured with Ancor"s premium UL 1426 tin copper battery cable. Flame retarded, UV inhibited, rated 600V and 105 degrees C. Lugs are tin copper to avoid corrosion and last longer. Each end has a piece of Ancor"s adhesive lined 3:1 heat shrink tubing placed over the electrical connection. The heat shrink tubing seal out moisture and other corrosive elements found in the marine environment. Cable Size: 4 AWG Color: Black Length: 32 in. Stud Size: 5/16