Specifications Name:4-hole Car Audio Battery Head Color:Silver Plastic Shell Material: Environmentally Friendly Material Metal Part Material: Zinc alloy Quantity:2PCS Wiring Hole:4GA 4-Holes Diameters: 13mm, 13mm, 7mm, 7mm Type: Battery Terminals Package Includes 1Pair 4-hole Car Audio Battery Head Applicable Apply to Most Cars. Features High quality battery clamp Alloy material, high temperature and pressure resistance, and high manufacturing process. Strong conductivity, protecting battery poles and extending battery life. Warm tips 1.The dimensions are all manually measured and there may be some errors. Due to different lighting, there is a slight color difference.Please do not purchase if you mind 2.If you has any problem, please feel free to contact us.please let us know before you send us the neutral/negative feedback that wont help to finish the issues. And I will definitely try my best to provide the best solutions which would meet your satisfactory