FeaturesLarge jaws, long leads and a piercing needle inside the jawsSolid, spring loaded copper clips with a wide 12.7 mm jaw opening and serrated teethLarge piercing needle for penetrating larger gauge wires located inside the jawsFlexible silicone insulated leads are heat and cold resistant-80 to 70 deg C temperature30 VAC, 10 A electrical ratingOne red, one black setCat I 30 VAC, 10 A