This isn’t of much interest to most folks I suppose, but this is a 1/4 wave antenna tuned to approximately 146.000mhz which is the center of the VHF 2-meter ham radio band. The band is 144.0 to 148.0mhz. It’s very short yet does a good job for me, mounted to the truck bed. I told you it wouldn’t be interesting!
Total length is 19.3 inches