Tram 1250 NMO Antenna Mount with 17ft Coax and Connector. Standard Body Mount NMO. Mount : 3/4 Inch Hole NMO. Connector : PL-259 Male. Coax : 17ft RG-58 Tinned Copper 95% Shield. Center Conductor : Stranded RF Pin : Gold Plated for superior RF contact. Material : Brass Ring with O Ring Protection. --- Good to 1.0 GHz! --- Comes with a Tram rain and weather cap and mounting bracket.