The Impossible Triangle Passthrough Fidget.

A triangular prism ☝🤓 seems to defy the laws of physics as an inner part passes through an outer part. I have made a V2, linked here. It is a bigger version of this one, but this one is still cool.

The second addition to this series of models. If you like this model, please make sure to leave a review, because it really will help me to make more cool models like this one.

It was harder than I thought to design, because if a certain section is too thin, then you can't fillet (round) the edge. If you don't fillet the edge, it has an ugly overhang that isn't really printable. So, it was difficult to find a way the measurements worked, but in the end, I really like how it turned out.