1. Corrosion resistance, good electrical conductivity with copper terminal 2. Scope of application: suitable for circular column type automobile battery SAE/JISA column, boat, trailer and other vehicles 3. Installation position: car battery bolt post 4. Purpose: connect battery and battery cable 5. Material: pure copper 6. Positive pole: 17.5 mm positive pole Negative electrode: 15.9 mm negative electrode 7. Wire diameter: wires with a diameter of 5.2–7.4mm (AWG specifications 1–4) or 16–35 Square millimeter Wire size (Min.): 16mm (5/8 inch)