The Hydro Locks is a collection of Props that can be combined and recombined to make any size industrial lock system you need. Don't need Hydraulic locks you say? That's crazy talk. And this product has nothing to do with that product. But seriously there are lots of uses for an industrial setting with multiple levels and an oversized sliding vault door. The water can be lowered or raised or removed. Create a toxic waste flow or a Dino pen. Catwalks make for a great way to keep an eye on exotic creatures and double as a gang plank to board those larger ships.