Reliable material: our battery connectors are made of high quality copper plating with corrosion resistance, good electrical conductivity, easy wiring and strong connection. Plastic cover is an insulating cover that is dust and moisture resistant and has a long service life Easy and convenient, you only need about 5 minutes to complete the entire replacement process. All you need is a spanner and a battery port. The thread on the terminal facilitates and installs installation. It is not only 12 V battery terminals, but also for 24 V and 48 V Quick ReleaseCar battery connectors are designed for users who normally replace batteries. The connections allow quick disassembly for charging and storing your ship or vehicle batteries Features: one red (positive) and one black (negative) clamp, cable is attached with a screw terminal; Positive electrode diameter: approx. 19 mm / 0.75 inches; Negative electrode diameter: approx. 17 mm / 0.67 inches; suitable for wires with 4 to 6 gauge Wide application: battery cable ends are commonly used for cars, vehicles, caravans and boats that have a standard battery for the upper post