This crocodile clip is compatible with 12-volt and 24-vot devices and is designed for use in emergency situations. The clamp is made of plastic and copper-plated metal, with red indicating positive and black indicating 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 offers a comfortable grip and added safety. Rated current: 100A. Metal crocodile clips offer rust resistance, corrosion resistance, and oxidation resistance for extended service life. Each clip end can be securely welded to a wire. Red and black jackets help distinguish positive and negative terminals. The spring is made from high-quality metal, providing strong clamping force and reliable grip. Maximum opening: 25 mm. Includes 2 battery terminal clamp connectors. 4-Way Battery Terminal SAE battery terminal connectors feature 4 posts for multiple cable connections, designed for SAE/JIS Type A rear car batteries. Robust and Durable Quick-disconnect battery terminals are made of tin-plated copper, offering superior 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"). Maximum wire clamp: 9.5 mm (0.37"), minimum wire clamp: 6.5 mm (0.25").