Bestga 10 PCS BNC Barrel Connector Female to Coupler Adapter for CCTV Camera Security Video Radio SDI/BNC Cable Joining Extension

Material: Metal Alloy; Color: Silver Tone Dimension: 31.93 x 9.5mm/1.25'' x 0.38'' (L*D) Package: 10 x BNC Female to Female Plug Connector Easy to use: direct inset and rotate it by hand Usage: Convert male BNC jack into a female BNC jack. Install CCTV camera. Join up or extend CCTV camera cables and video SDI/BNC cables. Connect hf radios to antennas, etc.