Prints without support.

Other components needed: 7-9,5mm steel ball, 5mm magnet.

Assembly instructions:

Insert the magnet into the small hole in the lid and secure it with superglue. Put the steel ball into the hole in the box. 

Close the box by sliding the dovetails into each other. Rotate the box to lock it. 

To open the box, slamm it onto a hard surface while pushing the two halves apart.