I have this skewer but it seems to have, what looks like some sort of security feature and I can't figure out how to remove. Can anyone identify this or have any suggestions on how to remove it?

[![The open side I guess](https://i.stack.imgur.com/taXOF.jpg)](https://i.stack.imgur.com/taXOF.jpg)
[![Not sure how to grip this](https://i.stack.imgur.com/be6dX.jpg)](https://i.stack.imgur.com/be6dX.jpg)