tilt window - lower sash won't close --> broken shoe

I noticed yesterday that one of my window was not closing properly. This is how I realize that a part was broken...
I'm not sure about the spiral balance tube itself (still good or not), but the shoe is broken
Is there a way you can identify which part I would have to order to replace it, based on the pictures? Or what other information I should try to give your to identify that part?
By the way, I don't know the window brand...

I did check again tonight....
1) the pivot lock shoe is not broken. Only the metallic part that goes on top of it
2) I do not see any sash stop on my window. Does that mean if I want to replace the lock shoe, I will have to cut the track on the upper part, and it will be visible (will be hidden by the blinds though)?
3) Should I replace both sides (spiral balance tubes and shoes?)
4) There is no colored tip on my spiral balance. The diameter is 9/16" for sure
5) How do I measure the length exactly (from where to where)?
Thanks

I checked on your website, and it seems ref 15-188 is very similar and could be a replacement....I will mesure more accurately the depth of the window track, and also the height of the pivot shoe. To measure exactly the width though, I will have to take it out I guess
I have no cutout, and on top of it I do not see any sash window stop at the top of the track
I don't really want to purchase the tool to spread the track, but since I have blinds, the cut out would be hidden. I could even try to place a sash stop to hide the cutout....Do you sell some that snap into the slot of the track?
Like I also said, there is no colored tip on the spiral balancers. They are 9/16" diameter though. And they are in between 33" and 34" long (something like 33" 3/4)
Should I order shorter (33") or longuer (34")?
Should I weight the sash and tell you to see if I need a red tip or a black one?
Thanks

I have now all the measurements:
-) tube length WITHOUT colored tip: 33"7/8
-) on the other tube, there is a yellow tip
-) diameter is 9/16"
-) Sash weight = 22.3 Lbs
-) Track depth = 9/16"
-) Lock pivot shoe height = 2" 1/8
-) Track width = 1"1/4
Can you confirm exactly what I would have to order?
Thanks

Yes, they seem to be the right one
Before I order spiral tubes and pivot shoes, I told you that my windows don