Package includes: 2 x 1000 Amp car battery charger clamps, black and red, 2 x crimp tips, 2 x screws, and 2 x nuts. These clamps are useful for connecting components to wires. Pure copper material: The conductors of the alligator clips are made of pure copper for optimal contact and performance, with an insulated handle for convenient use. Sturdy: This battery clip features strong jaws that remain securely in place once properly tightened, along with a robust spring mechanism requiring a firm grip. Size and fit: Each large alligator clip measures approximately 15.5 cm x 12 cm x 3 cm, making them easy to handle. Input: 12V, 24V, 36V; supports up to 1000 Amp current. Wide applications: Designed with portable, lightweight, safe, and reliable features. Ideal for use with home welding tools and electrical testing tools, widely used in various electrical projects, voltage testers, and suitable for use with car and truck batteries.