Connector on the mount to mobile antennas: SO-239 (UHF Female Right Angle) Suitable for most vehicle mobile antennas with a PL-259 connector. ^^
Cable connector to radios: PL-259 ( (UHF Male) Compatible with amateur mobile radio, ham radio, FRS/GMRS two way radio, etc. ^^ Installation is easy, 13ft low loss coax cable is enough for a cars trunk or hood mounting systems. ^^ A rubber layer on the underside of the top of the mount, which protects the paint of the vehicle and does not damage any body panel near the mounting area. ^^ Good quality, well constructed antenna mount for a better radio experience.