STRONG AND SAFE JUMPER CABLESThis 10FT upgraded jumper cables booster cable has four giant alligator clamps with strong jagged teeth and springs for excellent grip force. The jaws are strong and make connections easy. Our clamps are fully covered with premium PVC material to protect you from electrical shocks and use them safely. Each jumper clamp has undergone rigorous testing and with exhibiting excellent performance under extreme temperature conditions (-40 F to 140 F).