1. This product is made of brass, more durable than ordinary alloy 2. Brass material has excellent electrical conductivity, can increase the efficiency of current transmission 3. Strong corrosion resistance, longer service life 4. Solid wiring, not easy to fall off 5. Product material: the main brass (gaskets and screws for the iron, because the copper strength is not enough) 6. Fixing method: screw fixing 7. Product function: power connection, stabilize the current, protect the battery 8. Positive pole size: 1.75cm 9. Negative size: 1.65cm 10. Weight: about 105.2g/pair
