These large organizers are designed to nest when not in use or stack with their lids for more modular storage.

Two thickness:

• 1.2mm wall thickness - good for added strength or 0.6mm nozzles - takes about 50% longer to print (good for bolts, screws, and other heavier things)
• 0.8mm wall thickness - faster printing, fine for lite things like crayons, buttons, beads, etc.  Less material and time to print.

I cranked up the print speed for exterior walls as these are continuous runs with slow changing curves.

PLA is fine for most things, if you want a bit more durable try PETG.

Here you can see the model such that they stack on top of each other if you want to put a stack on a shelf.

If you are looking for smaller trays, check out the ones in my gaming accessories EcoDad's Gaming Accessories Collection by EcoDad.