Standard 1 1/4" heavy-wall pipe for all kinds of things on set. Create an overhead shooting setup, make a menace arm lighting boom, or play a massive game of joust with your friends. Note that you will absolutely need a large vehicle to haul this thing (it is 10' long, after all). We've also successfully mounted it to a roof-rack bike tray, so that might be an option for you if you have that kind of rack.