10pcs N Male Plug Crimp Plug Connector for LMR400 RG8 RG213 RG214 Cable RF Connector Impedance:50ohm Package include:10 pack 0-6G VSWR Below 1.3 Pure brass copper provide Great connectivity.(Not Alloy) Tested Quality Guaranteed.Mechanical attachment between the cable and connector bodies is the Crimp With Heat-shrink tube as insulation.