Mini plunger to BNC female with RG58 Material:BNC connector ,gold plated center body,nickel plated,insulation,ABS Wire: 20AWG Material:BNC connector ,gold plated centerbody,nickel plated,insulation,ABSWire: 20AWG,stranding 41x0.12Plunger clip:metal contact is phosphorous bronze,insulation,nylon. with body,nickel plated YH1235 plunger clip