• Made of cast copper alloy, tin plated for added conductivity & corrosion resistance
• 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)
• 25 times better than SAE conductivity standard, J1811
• Permanent, indelible, readable gauge, and polarity stamped on clamp
• Precise dimensions to fit battery posts for maximum contact
