The 3ft galvanized is perfect for satellite dish, wifi, and off-air antenna installations. the 1.66 inch diamter pole fits most all DISH (Network) satellite dishes, most Free-to-air dishes, and some Directv satellite dishes (measure your Directv dish opening to make sure). 1.66 is also a good diameter for U bolt assembly for antennas. Tripod and pole are galvanized. Tripod sets up in minutes!