Need replacement Channel Balances 2790 BG B.S.I. 30

With this combination of attachments, you could have either an S380-28 or S385-28 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need a 2765 strength option, which will support between 33 and 36 lbs. 

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Comparison of the S378, S380 and S385 balance shoes.