What is this?

[Keta]

I know I bought this a long time ago but do not member when or what it is for.

[foakes]

Could be a lot of things, Lee.

Part of a walking stick, glow plug lighter, linkage for something?

It looks like another tube may slip over on the left side up against the washer, spring, and adjustable stop.

Try Google Lens image recognizer search.

To use Google Lens to recognize objects in photos, you can:
Open the Google app or the Chrome app
In the search bar, tap Google Lens
Take a photo or upload an image
Select the area you want to search
Scroll to the bottom to see your search results

The other thing is —-

If you haven't needed it in the last 3 years —- you probably won't need it in the next 3 years.  So if you toss it —- your life will remain the same —- with less clutter.

Best, Fred

[jzman]

best guess is a spool/bobbin holder for guide wrapping thread.  It's a little too long for that though

[Midway Tommy]

Looks like it could be part of a tensioner for a line winder.

[Keta]

It would not be for my Triangle line winder but I think you might be right with my older drill powered one.

[MACflyer]

I'm with Tommy. Looks like part of a line winder Lee.

[Keta]

I put a line spool on it and if it isn't for spooling reels it sure would work.

[Maxed Out]

 Maybe part of a pogo stick lol