Sirio body mount with a SO239 stud. It has 4m of RG58 cable and is terminated with a PL259 connector.
Very high quality, Sirio is well known for its aerials and accessories.
Frequency Range: from DC to 500 MHz
Overall Size: Ø 41 mm
Mounting Hole: Ø 16 mm
Materials: Brass nichel plated, PTFE insulator, Gold plated pin
Cable: 4 m RG 58 / UHF-male (PL259)
Antenna connection: UHF-female