Its a modular formicarium, aka ant farm. For small ants.

Nests and arenas can be conneted in multiple ways. Attach more space when your colony grows. Open and close the doors between the habitats.

Use 2mm acrylic glas to cover the habitats.

Included a drill jig to help you cut out and drill holes into the acrylic glas covers.

Print out the hinges to connect the arenas and nests and put a door between them.

close all open end tunnels with door plugs.

there are two nests. a "dry" nest and a "wet" nest. the "wet" nest has a big center cylinder to store water and distribute it to one corner and two opensings arround the clinder. add some soil, clay or gypsum to cover the water outlets. The water will keep the material moist.