Conwork 4-Pack Car Battery Alligator Clip Electrical Test Clamp Jumper Cable for Portable Universal 12V Jump Starter Box Power Bank Chargers Red & Black These are ideal for Battery chargers (Solar panel, electric fence, etc.) or running apllications from a car or leisure batteries (camping ,boat,electric fence,etc.) Alligator clip clamp connector holds strongly. Widely used for various electrical projects, voltage tester. Easy and quick to connect. Package Contents: 4 x Alligator Clips(2pcs Red+2pcs Black). Lifetime Warranty.