Features: Make Sure All Wires are Safety and Tidy: The battery connectors have standard 0/2/4/8 AWG gauge, you can connect different sizes to the same terminal, and then connect the car battery, safer and better, perfect for battery terminals. Effectively Extend Battery Lifespan: Made of premium zinc alloy, plus pure copper fastening ring, with nice durability and better conductivity, it protects car battery terminals from corrosion and make battery lifespan longer. Battery Protecting: Equipped with a transparent cover, it can effectively block dust and damage from the surrounding environment, and better protects the wires and battery terminals. Strong Compatibility: Universal caliber for standard international car batteries, suitable for most car batteries, support 12-48V voltage. Specifications: Color: Gold/ Gold+Silver(optional) Material: Zinc Alloy Voltage Display: 12-48V Item Size(each): 59 * 47 * 19mm/ 2.3 * 1.9 * 0.7in Package Size: 122 * 73 * 29mm/ 4.8 * 2.9 * 1.1in Package Weight: 367g/ 12.9oz Packing List: 1 * Pair of Battery Terminal Connectors(Positive & Negative) 2 * Transparent Cover 2 * Adjustable Shims