The red is positive and the black is negative.
2 PCS 1000A Heavy Duty Battery Alligator Clips Jumper Cable Clamps Red Black
Alligator Clips Battery Clamps - 2 Pcs Heavy Duty 1100A for Under 0 AWG Wires
2 Pcs 1000A Heavy Duty Insulated Alligator Clips Battery Jumper Cable Clamps
Six-Inch Heavy-Duty Jumper Cable Clamps - Reliable 1100A Alligator Clips 2 Pcs
2 PCS Battery Jumper Cable Clamps, Heavy Duty Pure Copper Alligator Clips Jumper
