【High Quality】The battery terminal is made of pure copper and is oxidation-resistant, corrosion-resistant, and rust-resistant. Copper has the best electrical conductivity to reduce voltage distortion. 【Package Contents】The package includes 2 pairs of battery terminals, color: brass color, weight: 148g/pair, voltage: 12V or 24V, positive electrode: 18mm, negative electrode: 16mm. Durable, strong electrical conductivity, rust-proof, oxidation-resistant, long service life, safe and applicable. 【Safe to Use】The positive and negative battery terminals are clearly marked for easy identification. Designed for high-current applications, it can meet your different needs. The quick connection of the car battery is easy to identify and avoids the risk of electric shock. 【Easy to Install】The battery terminal adapter is used for battery extension, parallel connection, and grounding. The thread on the terminal facilitates installation. Simply tighten it with a suitable wrench. The wiring is sturdy