Features:Brand new and high qualitySimply & Professional appearance for cablingEasy to use & install Easier for CCTV camera installation， save time and save moneyNo electrical tap， No splicing， no crimping， but only a small screw driverGood Quality within 50M Cat5/Cat6 cable Material: Plastic + MetalContact Diameter: Approx. 13mm/0.51"(Outer); 4.8mm/0.19"(Inner)Dimension(L*W): Approx. 40*14mm/1.57*0.55"Package Includes:20x Coax CAT5 To Camera CCTV BNC Video Connectors