Stable battery terminal connectors for SAE JIS posts1、Compatibility: Battery terminal connector is fit for SAE JIS Type A Posts, and suitable for wires diameters 4.1 – 8.2mm/0.16‑0.32in. 2、Stable Connection: This battery terminal connectors have 4 post for wire connections, and designed for multiple cable connections. 3、Strong Electrical Conductivity: Battery terminals are made of tinned brass with good electrical conductivity, which can reduce voltage distortion and transmission loss. 4、Application: Battery terminal connectors can be used for cars, vans, RVs, truck batteries, car stereo, etc. Just make sure to connect the correct terminals with the correct polarity. 5、Easy Operation: Kit provides wrench for easy installation, easy wiring and strong connection, saving your time and energy.