Aw... super cute and just in time for Halloween (or mad scientist?) projects. This is a flat laser-cut, heavy chipboard set to put together a test tube rack (AND it includes the 5 tiny glass test tubes).
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.