It's 2" ID, 1/8" thick, grey color, I think it's exterior pipe, no lettering on it.
It did start to break off on the ends and the bottom was getting a flat spot from the gravel. But it did the job and now that everything is frozen, I took it off. -40 below wind chills possible tomorrow and Saturday.
I'll flip it over and put it back on when things thaw out again. If I get one season out of one piece of pipe, I'm happy. Especially since I was given about eight ten footers for free. Now I just need to save up for a cab, I don't mind the snow but -40F!!!