Window balances help needed!

A home owner from USA says:
August 10, 2015
Hello sorry I need help identifying the following balance. I'm going to need roughly 6-8, just not 100% which series it is looks like 385 but not sure There are little side wings on the bottom piece as well. Thank you and hopefully someone will be able to help me out, 9/16 width, 29" long balances.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
August 12, 2015
Thanks for posting. Start by looking at our S380-29, I think this may be a match. Just make sure the dimensions all match up, specifically the size of the shoe.
29" Series 380 Channel Balance
29" Series 380 Channel Balance
S380-29
$11.10
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