This is a new Skadis thread hook designed to stop the bobins from falling down.
The hooks I found on internet were all flipping over as soon as something hit on the top of the bobin.
It uses 2 slots to hold the bobins as stable as possible but are also super easy to install and require only 5g of plastic.
I used Bambu basic PLA because the bobins aren't heavy…The CATS are always the problems…Unless you use this design.