Hi Mary,
This flange has an inside diameter of a little more than 1", so it should fit on a 3/4"-1"pole. The thumb screw just needs to be loosened until you can put the flange onto your pole and then tightened again to hold in place. We have reached out to you privately also.
Thank you,
The Birds Choice Team
“This item was a great find! Solidly made, welded and super sturdy. I used it to make my own platform bird feeder and attach it to a pole I already had.”
