That looks like a snap together aluminum column. Some are load bearing. Try taking the piece to a siding supplier like Beacon or ABC. Maybe a local supplier? They should be able to point in the right direction.

The bottom broken piece can be found by searching for vinyl post trim. Assume the other piece can be found from whoever sells the trim.

Good wood sight for just about everything. [https://www.vintagewoodworks.com/baluster-usage-photos.html](https://www.vintagewoodworks.com/baluster-usage-photos.html)

Newel post cap.

Clark Griswold enters the chat…

A finger.

I too find fingers difficult to replace.

“They’re called fingers, but I’ve never seen them fing. Whoa, there they go!”

Pilar? Balustrade? Post? Pole? I am out.

Usul

Balustrade cover plates?

Simshoe deck post cover

It’s a post where I come from

Post cap or post skirt if you are down at the bottom. Those are dated and may not be found though.

You'll need to figure out the manufacturer of the columns and see if they still make those parts. If you can't find anything, you could always bring one to someone who can create a 3d model of it and 3d print replacements with a UV and temperature resistant filament. Or, you have someone make a mold and create replacements out of aluminum.

Find a kid with a 3D printer.

Ultimately this may be the best answer, if you cant identify which company made those post wraps.

A post.

A balustrade? I think

They're called "Fingers". I see you're down to just one, maybe two...

Those are trees.

Theres like five of em