Designed for organizing Japanese furikake (rice seasoning) packets, but could hold anything. The eight compartments are 37mm x 62mm x 50mm (LxWxH) and fit 8-9 furikake packets each.
I designed for and printed with an 0.80mm nozzle simply because that's what I had installed at the time. It should work just fine (or better) with 0.40mm or other nozzles.
The author hasn't provided the model origin yet.