Features: 1.Application: The battery terminal connector has 4 terminals for wiring, designed for various cable connections, mainly used for SAE JIS Type A car rear batteries. 2.Low Loss: Tinned copper quick disconnect battery terminals not only provide good conductivity, but also reduce voltage distortion and transmission loss. 3.Size Details: Product inner diameter is 16?18mm/0.62?0.7in, positive inner diameter is 17.5 mm/0.69 in, negative inner diameter is 16 mm/0.63 in. 4.Correct Connection: Battery terminal connector is suitable for cars, vans, caravans, trucks, etc. Just make sure to connect the correct terminals for the correct polarity. 5.Easy to Install: Equipped with the wrench, easy to install, the wiring is easy to modify and the connection is firm, press the lever to fix the battery on the battery post. Specification: Item Type: Car Battery Terminal Material: Pure copper tinned, plastic housing Screw Diameter: Approx: 6mm/0.23in Product Diameter: Approx: 16-18mm/0.62?0.7in Positive Inner Diameter: Approx: 17.5 mm/0.69 in Negative Inner Diameter: Approx: 16mm/ 0.63in Application: Fit for SAE JIS A type automatic battery Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.