The GoodAll 14-203 commercial booster cables are 20-ft. long and made of 4-gauge all copper wire.  The cable has a twin extruded jacket for durability, and remains flexible to -40ºF.  The parrot type clamps are equipped with a heavy duty spring.  Rated at 450 amps, these jumper cables are appropriate for up to light to medium duty boosting.  Individually boxed.

Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov