Sherco Auto & Marine Supply's Our Crimp or Solder copper lugs are made from seamless tubes of Usa Made 99.9% copper for higher conductivity UL listed Product Features: - Designed For Stranded Copper Wires - Rated For 600 Volts - Cable Size And Stud Hole Stamped On Pad - Can Be Crimped Or Soldered - Highly Controlled Flare To Allow Easy Cable Insertion - Tight Barrel To Pad Transition Provides Longer Usable Barrel Length - Larger Pad Area For Better Contact - MADE IN THE USA