Cyclists, what is this tool called?

What is the name of the caliper-like tool used to check if a wheel is true? I used to work at a bike shop, and now I’m drawing a blank while looking on ebay.

Thanks.

Truing stand?

Thank you, yes. Wow, I feel dumb for not working that one out :stuck_out_tongue:

Or a dishing tool

Always called them wheel jigs.