Wig Holder

This is a collapsible wig holder, which I designed after seeing a photo of something similar.
It works fairly well, but I would like to improve the little thingies that should keep the rings seated on the other parts.

I will try to upload pics soon in case you don't get how it should be assembled.

The parts 'A' and 'B' stand vertically, and the top ring is placed over them onto the notches and the bottom ring goes in the lower middle in the notches.