Flag Pole for Truck Bed Flag Mount?

So I purchased the flag mount last year (the one that mounts to the Toyota factory bed rails), and then COVID promptly hit and no one was going much of anywhere, so I didn't get to use it.

Now that everything's opening up again, I'd like to purchase a flag/flag pole, but am not sure if I need to do anything more than purchase your standard US flag on a wooden pole for the truck bed flag mount. Anyone else own a flag they fly in their truck bed/hitch, and if so, what'd you go with?

 

Caliraised has one that mounts inside bed in factory rails…I’ve been toying with the idea of the hitch mount pole
Fanpole.com

 

At the beach last weekend. I just got a standard wood pole set from the hardware store. Haven’t driven with it installed, but I prob wouldn’t drive more than about 25mph with the wood pole.

 

Yeah, that’s kind of what I’m wondering. I’ve got the CaliraisedLed Mount; but am wondering what I’d use if I DID want/need to drive around normal speed limit (55 or so, back and forth to work, etc.