General description The CSPARKV Battery Terminals Connector Clamp is designed for reliable and efficient connections for car batteries. Made from quality copper with a galvanized surface, these terminals are rust-resistant and durable. Each connector is color-coded with a red and black plastic case for easy identification and corrosion prevention. Technical specifications Material: Copper with galvanized surface Battery positive electrode dimension: 0.71 inch / 18 mm Battery negative electrode dimension: 0.63 inch / 16 mm Installation Each battery connector is equipped with an M8 nut for easy installation. Usage Widely compatible with various car battery types. Good substitute for existing battery connector terminals. Other information Package includes: 1 pair of battery terminals (red positive and black negative).