25 TIMES BETTER THAN SAE CONDUCTIVITY STANDARD, J1811, MADE OF CAST COPPER ALLOY, TIN PLATED FOR ADDED CONDUCTIVITY & CORROSION RESISTANCE, PERMANENT, INDELIBLE, READABLE GAUGE, AND POLARITY STAMPED ON CLAMP, PRECISE DIMENSIONS TO FIT BATTERY POSTS FOR MAXIMUM CONTACT MADE IN USA, QUICK CONNECTORS ARE LISTED BY UL® (UL® STD 486A) & CUL , WHEN APPLIED WITH QUICK CABLE QUICK CRIMP TOOLS 4255, 4255M, 4255R & 4255MR (STANDARD AND RATCHET VERSIONS) |