Crocodile clip

Alligator Clip Battery Clamp with Cable Crocodile Clip Connectors

The jaws are very strong and will not come off easily when clamped correctly.

Model:HPS-AC003

Electric Fence Jumper Leads - Connect Charger & Fencing System, Alligator Clip Wire for Energizer

The jaws are very strong and will not come off easily when clamped correctly.

Model:HPS-AC002