Features: 1.Widely Applicable: Battery terminal connectors suitable for cars, boats, RVs, trailers, etc. Please be sure to connect correct terminal to correct polarity. 2.Stable Connection: The connectors guarantee safe and reliable electrical connections, effectively resist oxidation phenomena, thus improving performance and longevity. 3.Wiring Size: Suitable for wires with a diameter of 5.2?7.4mm/0.2?0.3in (AWG specification 1?4) or 16?35mm/0.62?1.37in ^2. 4.Practical and Reliable: Multiple power leads, power switches or other current loads can be attached to help users respond flexibly to multiple needs. 5.Durable Construction: The connectors are made of metal materials, which are resistant to high temperature, wear and cold, and are suitable for various harsh environments. Specification: Item Type: Car Battery Terminal Connector Material: Metal Product Properties: Positive 17.5mm/0.68in, Negative 15.9mm/0.62in Wire Size: Diameter 5.2 ? 7.4mm/0.2?0.3in (AWG specification 1 ? 4) or 16 ? 35mm/0.62?1.37in^2 wire Product Use: Connect the battery and power, stabilize the current, protect the battery Application: Suitable for SAE JISA type terminal post car ship trailer and other vehicles