Fedora ovoid 56.5 enlarger

This is a hat enlarger for 56.5 head size.
It is design for ovoid crown hat like fedoras but not only I guess.
I made this because I bought indiana jones advintage fedora and I could't select a mid size, between round ones.
My head size is 56.5 so I choose 56 knowing that it would be to tight.
I leave it into my hat all the time so the fur felt can stretch a bit to 56.5.