Help in identifying a balance

A contractor from California says:
March 28, 2016
Please find 5 pictures of the balance. The length is 33 and the width is 1/2. I can't figure out what to order. Thanks in advance for your response.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
March 30, 2016
Thanks for posting. It's hard to tell exactly what balance you have. I have narrowed it down to two, but the key difference between them is the size of the bottom shoe. You will need to measure yours and look over our dimensions to confirm the better match. See our S380-33 and S385-33.
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