New HI-Tech Sirio Gain-Master Half Wave - CB and 10m Base Antenna (27-30 MHz ...

1/2 wave center fed vertical dipole. Type: 1/2wave center fed vertical dipole. 18ft in length, and won't scare the neighbours unduly! Perfect for CB or the 10m amateur band. Materials: Whip made of white fiberglass three section composite tube, radiator made of copper wire and low loss coax cable, stainless steel hardware, anodized AW6060 aluminium, UV stabilized thermoplastic.

eBay