Channel balance

A quick learner says:
I think I need part number Series 385. 21 inch metal channel. Top #19-005. Bottom #15-004. Based on the pictures, is this correct?

Thanks
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Bob from SWISCO responded:

Thanks for posting. If the bottom nylon shoe in fact matches our 15-004, with a depth of 1-3/32" (the heel-to-toe measurement), then see our S385-21. For a new stamp option choose 2040. 

15-004 : Winged Channel Balance Shoe, 1-3/32
Winged Channel Balance Shoe, 1-3/32" Depth
15-004
$0.82
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S380-21 : 21
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S380-21
$9.02
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S385-21 : 21
21" Series 385 Channel Balance
S385-21
$9.02
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