Taomei Boost Bridge Car Battery Jump Starter Connector Battery Switch, 2 Pieces, Multicolour

1. One red (positive) and one blue (negative) clamp. 2. Cable is fixed by a screw clamp. 3. These are for round conventional terminal batteries only. 4. Heavy duty - fits 4 to 6 gauge wires and is rated for 500 amps continuous 800 amps surge at 12 volts. 5. This product used to fix the wires is designed for users who often needs to change the battery. 6. 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. 7. Quick release design - attach to battery terminals by clamping down and lift caps to remove from battery terminals.