SVAAR 4 6 8 AWG Battery Cable Lug 4+6+8 Gauge – 3/8+5/16 Ring, Tinned Copper. Tinned Copper – Cable lugs are made of T2 low resistivity copper, purple copper with strong durability ,99.9% purple copper structure achieved excellent conductivity,With special matte tinned process, their less Impurities and provide you a higher degree of conductivity and more corrosion resistance. Leia Mais