The Pro Trucker PTSPM50 is a CB Radio antenna mount for Freightliner Cascadia series trucks. The PTSPM50 also works for mobile antenna and satellite antenna mounting installations. The Pro Trucker antenna mount installs at the top of the passenger side door above the spot mirror or at the rear of the cab. Made of stainless steel and featuring a chromed brass ferrule, the Pro Trucker PTSPM50 6 inch spot mirror mounting bar fits in place of M6/torque mounting bolts. Pro Trucker antenna mounts are easy to install and built to last!