The main components of the battery pile head is made of copper. Attachment screw and nut are not copper.
Suitable for most vehicles
Copper material has good conductive performance, good flexibility
The pile head will not break, corrosion resistance, can reduce the voltage distortion and the current transmission loss.
Corrosion resistance, good conductive performance, wiring is convenient, and the connection is firm.
High Quality Universal Car Truck Battery Terminal clamp 1set ( Positive 1pcs + Negative 1pcs)
Type: Lead-free , size Adjustable.
Lift up plastic protection covers.
Fit for most car, boat, van battery.
Fits 6V/12V positive or negative battery.

Specification:

Size: Approx  75*30MM
Color: Black+Red
Material: Plastic+Copper

Package Includes:

            1x Battery Terminal With Red( +Positive ) Cover
            1x Battery Terminal With Blcak (- Negative) Cover