ITEM NAME:2Pcs Car Battery Terminal Connector Clamps Switch 12V Auto Quick Release New Hot Descriptio n Description: Quick release car battery connectors. One red (positive) and one blue (negative) clamp. Cable is fixed by a screw clamp. Heavy Duty - Fits 4 to 6 gauge wires and is rated for 500 amps continuous 800 amps surge at 12 volts. This product, used to fix the wires, is designed for users who often needs to change the battery. When you want to change the battery, you just need to lift the insulation shell that can quickly remove the battery, and then put a new battery, which can be fixed firmly. Quick Release Design - Attach to battery terminals by clamping down and Lift caps to remove from battery terminals. These are for round conventional terminal batteries only. Specifications: Type: Battery Terminals Material: Copper + Plastic Shell Size: Approx. 6.8 * 4.6cm Inner Diameter (Positive): Approx. 18mm Inner Diameter (Negative): Approx. 17mm Package Included: 1 Pair * Battery Terminal Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Whatever the ending's perfect or not, you can't disappear from my world 2Pcs Car Battery Terminal Connector Clamps Switch 12V Auto Quick Release New Hot.When you want to change the battery, you just need to lift the insulation shell that can quickly remove the battery, and then put a new battery, which can be fixed firmly. This product, used to fix the wires, is designed for users who often needs to change the battery.