This crocodile clip is compatible with 12-volt and 24-volt devices, designed for emergency use. The clamp is made of plastic and copper-plated metal. Red indicates positive, black indicates negative. A 30-amp fuse provides protection against short circuits and helps prevent damage from high current surges. Extension cable length: 3 feet / 1 meter. FITS MOST VEHICLES Clips connect directly to the car battery, allowing use of high-performance devices while protecting the vehicles cigarette lighter socket. Alligator clips are constructed from high-quality copper for excellent electrical conductivity. The insulating jacket ensures comfort and safety. Rated Current: 100A. Metal crocodile clips offer rust resistance, corrosion resistance, oxidation resistance, and long service life. Each clip end can be securely welded to a wire. Red and black jackets help identify positive and negative terminals. The spring is made of high-quality metal, providing strong clamping force and secure grip. Maximum opening: 25 mm. Includes 2 battery terminal clamp connectors. 4-Way Battery Terminal SAE battery terminal connectors feature 4 posts for cable connection. Designed for multiple cable connections, suitable for SAE/JIS Type A rear car batteries. Robust and Durable Quick-disconnect battery terminals are made of tin-plated copper, offering good conductivity, corrosion resistance, reduced voltage distortion, and minimal transmission loss. Dimensions: fits wire diameter 5.27.4 mm (AWG 14) or cross section 1635 mm. Minimum wire thickness: 16 mm (5/8"). Max wire clamp: 9.5 mm (0.37"), mini wire clamp: 6.5 mm (0.25").