Put your shovel and wheelbarrow away. With our unique Aussie Auger ground mounting system, you will not need to dig holes to mount your arbor into the ground. Simply twist the large auger into the ground, slide the plastic biscuit over top, and slide the arbor over the biscuits. Screw them into place and installing your arbor has never been easier. The Aussie Augers are made of galvanized steel and ABS plastic to provide a secure and lasting anchoring system for your arbor. They extend 16 In. into the ground and sleeve up the arbor another 8 inches. The Aussie Augers are for 4 In. posts. Each kit contains 4 augers for a complete arbor solution. Forget cement and digging holes. Our Aussie Auger mounting system has never made installing so easy.