Pivot lock shoe?

A home owner from Rhode island says:
Hello Sir/Madam,

I'm looking to repair my windows in my newly bought condo. None of the windows stay open and have broken horshoe looking parts/coils on the sides. I am unsure of what parts I need. I believe it's called a pivot lock shoe for spring balance windows? I'm not 100% sure and figured I'd ask the experts!
The measurements are approximately depth 1/2 inch x length 7/8 inch x width 1 inch.
I have also looked everywhere for a manufacture name for the window and can not find it anywhere! Sorry this doesn't help.
I'm hoping I don't need to replace the windows.

Thank you!
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Bob from SWISCO responded:

Thanks for posting! This looks like either a 15-178 or 15-188 Pivot Shoe. Double-check your dimensions to see which matches best. For details on how to remove and replace these pivot shoes, see the video below.

How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
VIDEO
WATCH >
How to Remove a Pivot Shoe (Cutout Method)
How to Remove a Pivot Shoe (Cutout Method)
VIDEO
WATCH >
How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
WATCH >
Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
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