Ah... so cute! A small shadowbox (approx. 3-1/2" x 5-1/2" inside dimension). About 1-1/2" deep (outside dimension).
With it's sturdy construction, it could also be the base for a small shrine. Ships flat, but easy to put together with a bit of glue.
Note: Items cut from this heavy, light-grey chipboard burn easily so the laser-cutting process may leave charcoal residue behind. Save yourself a headache, and just wipe the cut edges of these items down with a dry paper towel before assembling or painting.