I'm gonna guess based mostly on the bottle of clone x growing solution at the bottom it looks like some sort of (maybe hydroponic) plant-growing setup.

ETA: the things on the left are branded "Grodan" and look a lot like "Grodan A-OK 1"x1" Sheet of 200 Rockwool / Stonewool Starter Cubes for Cuttings, Cloning, Plant Propagation, and Seed Starting"

u/SuperLougat solved it with the comment above. Link to the original post

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