This alligator clip works with 12 and 24 volt devices. It is used in emergency situations. Clamp made of plastic and copper-plated metal. Red indicates the positive pole and black indicates the negative pole. 30A fuse protection ensures safety in the event of a short circuit and prevents damage to devices caused by high current surges. Extension cable length: 1 m. Suitable for most vehicles: The clips connect directly to the vehicle's battery and allow high-powered devices to use the energy, thus preserving the car's cigarette lighter. Quick disconnect when needed: Creates connections that can be disconnected in seconds. Use these quick release pliers on boats, cars, motorcycles, etc. Package Dimensions: 18.7 x 11.7 x 2.1 cm; 160 grams