Styrofoam falls out constantly

I've been using this mannequin for a couple of months and the cheap quality has become very apparent. Every time I try to tighten it so it stays in place, it digs more and more Styrofoam out of the body. Not only does this fall all over my floor but it makes the hole inside the mannequin larger, so there is less grip. Over time, this has resulted in a torso that does not stand up straight. I have to spend a lot of precious time trying to find just the exact spot to get it to balance perfectly, otherwise it leans sharply to the side. Half the time I can't get it to balance at all. Vert disappointing.

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