NMO Mount Magnetic Base with PL259 Plug 

for Car Bus Taxi Mobile Radio Antenna W/ 5M Cable

Magnatic Base

Cable Length: 17ft (5 Meters) RG-58 Cable

Base's Diameter: 2.2 Inches (55 mm)

Mount Connector: NMO (M Female)

Cable to Radio's Connector: PL259 

If the mobile is programmed with multiple RF bands, one mobile antenna is required for each band. Each frequency band has its own RF port.

It’s compatible with all no more than 50W mobile radio.