For the video introduction, please refer to:

Bilibili: nanma80After making some minor adjustments and getting the approval from the experts, I uploaded the design to MakerWorld.

It's a really fun little box.

It can be used as a puzzle block game. Let's see how long it takes for someone who has never played with it before to assemble the four blocks into an octahedron.

How long will it take to open it after it's assembled?

The middle of the box is empty, and you can put small gifts in it.