This crocodile clip is compatible with 12-volt and 24-volt devices, designed for use in emergency situations. The clamp features a plastic housing with copper-plated metal clips. Red indicates positive and 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, and oxidation resistance for extended service life. Each clip end can be securely connected to wire by soldering. Red and black jackets help identify positive and negative terminals. The spring mechanism, made from high-quality metal, provides 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 multiple cable connections, designed for SAE / JIS Type A rear car batteries. Robust and Durable Quick-disconnect battery terminals are made from tin-plated copper, offering good conductivity, corrosion resistance, reduced voltage distortion, and minimal transmission loss. Dimensions: suitable for wire diameter 5.2 - 7.4 mm (AWG 1 - 4) or cross section 16 - 35 mm. Minimum wire thickness: 16 mm (5/8"). Maximum wire clamp capacity: 9.5 mm (0.37"), minimum wire clamp capacity: 6.5 mm (0.25").