Where can this clamp be found

Hey y’all, I’m looking for a cam lever clamp to hold a tube for a project of mine. The other end would be mounted/welded into an aluminum square tube. Where can I find something like this? Or does it have to be custom made? Kyle

I’ve seen things like that on a bicycle seat post.

Look on Amazon for a bicycle repair stand clamp.

Or would something like this work?

https://www.amazon.com/SUNWAYFOTO-CC-01T-Super-%EF%BC%8CGopro-Adjustable/dp/B08XMD827Y/ref=sr_1_55?crid=164JZ6OAUNYMK&keywords=tube+clamp&qid=1642827438&sprefix=tube+clamp%2Caps%2C133&sr=8-55

Sources:  Jwwinco, Grainger, McMaster Carr

appreciate the suggestions guys! Didn’t think of the bike route. Also going to have a closer look at those suppliers, thanks Alan. I got a bunch more research to do

  It's called a "Cam Clamp".   

https://www.rockler.com/cam-clamp