12PCS 6x3/8 Tinned Copper Ring Terminal Connectors 6 AWG Heavy Duty Battery Cable Ends Bare Copper Lugs with 12 PCS 3:1 Heat Shrink Tubing for Vehicle Boat Marine Use

Copper Ring Terminal: Material:T2 low resistivity copper Surface:salt spray test 48H protection fog tin Hardness HV:120-70 Production process:cold pressing Features:high conductivity contact material They are high conductivity copper and withstand a wide range of electrical and environmental conditions,including current surges,temperatures,corrosion and vibrations,for a wide variety of applications.