impossible dovetail container

With a dovetail on all four walls of this cube, makes it seem imossible to ever take this cube apart. But by sliding the two parts apart in a specific way, the cube opens up to show a little storage compartment.

The container can be a fun way to give a small present like a ring or other little things. It will take a second to figure out how to open this box but after trying a few times most people can figure out how it works.