This 4-Piece Kit Includes 2 Male And 2 Female -Style Welding Cable Connectors Rated For 200A. The Dkj10-25 And Dkz10-25 Connectors Feature High-Quality Copper Alloy Construction For Excellent Oxidation Resistance And Conductivity Ensuring A Long Service Life. The Rubber Covers Provide Good Insulation For Safe Use And The Base Connectors Are Made Of Durable Hard Plastic.