 And we should be able to use that arm to inspect the gates themselves. That was the initial idea. So it's been four years we've been working on this project. We've got the robot. It can drive in. If it loses signal, it can drive back out, kind of like a drone returning back to you. Right, right. But most of the time, it's remote-controlled. And then once it gets to the gate, it needs to do that NDT inspection, non-destructive testing inspection. So it needs to measure things on the gate to tell the inspectors how...