Features: brand new and high quality This auto battery terminals are made of copper alloy, strong Electrical Conductivity. The car battery terminal connector surface is nickel plated to prevent oxidation and protect the battery terminal from corrosion. 0/4/8 Gauge input battery post clamp with different sizes, which makes it easy to Modify the wiring. The car audio battery terminal connectors come with a positive or negative adapter fit for most model's batteries. Easy to replace, fast installation, good conductivity. Perfect for power connection, steady current, protect the storage battery and more. Package Includes: 2x Battery Terminal Specifications: Material:Metal Hole Diameter:Approx.17.5mm/0.68in Type:Positive Terminals,Negative Terminals,Positive & Negative Terminals Net Weight:181-424g note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.