Mechanic's-grade booster cables are ideal for nearly any job
Parrot-jaw, heavy-duty, 500-amp clamps fit top and side post batteries, making these 16-ft., 4-gauge, mechanic's-grade booster cables ideal for nearly any job. The copper cable is coated with rubber insulation that stays flexible to -67°F. Individually inspected for defects before leaving the factory.
2013 Master Catalog: Page 691