Live event Wires?

I always ask my self how they do it? Most live events Have a wire Going from one end to another Like this.
How do they do it?

While I’m not an expert, or have any experience with this kind of stuff, I’m pretty sure it’s just a transparent part with a custom trail effect, then the part travels at high speed to make this effect look like as if it was a laser.

Ya maybe. I have seen it in so many live events.

When you say:

Do you mean like for example Jailbreaks like events, or the many other games that have had live events? Or do you mean something else?

From what I’ve seen I believed that is a Beam with a lightning texture on it.