Extension support pole with T-nut and clip 1 end. The key to a stable and sturdy campsite setup is with quality, Australian made poles. This extension support pole is made with a c-clip 1 end, designed specifically to fit horizontally between tent poles to brace and give structural strength to applications such as caravan annexes, tarpaulins and awnings. These upright tent poles are built to endure the rugged outback and withstand any pressure, to keep you and your campsite secure.