Efficient Conductivity: Battery terminal made of high quality brass with excellent conductivity, reducing voltage distortion and transmission loss. With anti-corrosion pad, it can effectively protect the battery and extend battery life. 4 Way Wire Terminal: Battery terminal connector with 4 wire terminals, designed for multiple wire connections, easy wiring and easy modification. Suitable for round SAE/JIS Type A car battery terminals. Flexible Size: Positive terminal inner diameter (red) 17.5-19.1mm, negative terminal inner diameter (black) 15.9-17.5mm, suitable for most battery models, is great for replacing worn and corroded terminals. Easy Installation and Disassembly: After installing the terminal into the battery, press the aluminum alloy lever to connect the battery terminal. Equipped with an Allen key for easy installation of screw terminals without additional tools. Wide application: Battery terminal with positive "+" and negative "-" signs, easy to identify. Suitable for