Tiny book with a little compartment. The pages go in a certain way: You can probably tell the “ears” on the inside fit inside the grooves in the cover and the ears go towards the spine. This lets you pull the drawer out without totally removing it without a little bit of effort.

The original model was bigger and lacked the "floor" on the inner piece.

If you want to print these with the two-colors, suggest you print a bunch at once to minimize waste.

I print a plate of the covers standing up and another single-color plate of the pages with the drawer side down against the bed.

Note that you don't need support, but you do need the best overhang performance (wall order makes a difference).