I drove a piece of rebar into the ground, then slid a piece of PVC pipe over the rebar, slid the green squirrel guard bracket over the PVC pipe and tightened the screws to hold it in place, then slid the green canister over the clamp. That particular bird feeder fit perfectly on the end of the PVC pipe.
The canister just sits on top of the clamp and is free to move around and wobble. I've watched squirrels try and get up but they get as far as getting their head inside the canister and can't go any farther. So now they just stay on the ground and clean up the seeds that the Blue Jays toss all over the place.
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