Thumb trap
This strange looking device is very evil! It is a pair of thumbcuffs mounted on a stick, connected to wrist cuffs. It means you can not pull your thumbs out of the thumbcuffs, even if they are not super tight. It was custom made and very high quality. This device is very evil, if you are stuck in this, there is not much you can do!!
Did you try these combo cuffs behind your back?
Looks great to give to the convict who still claims innocence while sobbing, to show them that either way they are a prisoner now.