Balance identification

A home owner from USA says:

attached are a couple of photos. I found the chart that Stry-buc uses. According to that chart it would require the black balance.
User submitted photos of a window balance.
A home owner from USA says:
I found the broken piece to the balance, so I was able to measure the blue plastic part. It was
1 1/4".

Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting! This looks like our S850-28 crossbow balance. I'm not sure what a Blue shoe represents, or if its even made anymore, but our Black shoe carries sashes weighing 7 through 21 pounds and the White shoe carries sashes weighing 21 through 26 pounds. Please review and see what you think.
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