Built in a strong spring that won't lose its elasticity easily after multiple uses. The red clamp is positive and the black is negative. Current up to 500A.
Versatile 2PCS Heavy Duty Crocodile Clamps for 12V/24V Battery Charger Projects
50A Heavy Duty Crocodile Clips-COPPER PLATED -w/ Insulated Handles--LOT OF-4
30A Heavy Duty Crocodile Clips-- -w/ Insulated Handles--LOT OF -4
4PCS Heavy Duty Crocodile Clamp Copper 500A Battery Charger Alligator Clip
2PCS Heavy Duty Crocodile Clamp Copper 500A Battery Charger Alligator Clip
4 PCS Jumper Cable Clamps Heavy Duty, Battery Clamps 1100A Jumper Cable Ends,
