Small Impossible Dovetail Gift box

Small gift box using the impossible dovetail. at 100% scale the internal box measurements are 35mm x 35mm x 25mm (originally designed to fit a ring).
The dowels in the corners are a simple locking mechanism. Their holes are deeper in the bottom section (white in the pictures) so if the box is held upside-down (white side up) the dowels stop you from being able to open it but if held the right way up the dowels sit nicely inside the bottom section and the box can be slid open.
0.2mm tolerances used.