Teresa, there are holes through the first part of the frame that the bottle neck and bottom fit through. Then there is another board on the outside of that board to hold everything in place. That is why there are so many layers in the frame.
It helps to have a carpenter husband to center the bottles for me.
Putting my design together was his birthday present to me which made both of us happy because he didn't have to think of something to get me, and it just took him a little while, and I got something I really wanted for my birthday! :lol:
The plate flowers have a bent spoon on the back of them that fit over the board so I can take them off and put them away for the winter.