Flagpole Mount - 45 WedgeRailhookz
This is a very unique item for the outdoor deck, dock or patio life.
With the Patented Universal Clamping System it can attach to the many different size and shape (round or square) upright balusters of a deck, dock, patio or fence. The clamp will adjust from a depth of 3/8 inch to 2 inches the width has a maximum of 2 1/8 inches.
This mount will hold a pole up to 1 inch diameter.
I have a big flay and our bracket did the job