help finding plastic clips

A quick learner from USA says:
hello, please help me to find these plastic clips i need on a 28b balance, thanks
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Bob from SWISCO responded:

See our S380-29 Channel Balance. Review and see if this matches what you need. If so, for a stamp option choose 2820. Pay special attention to the bottom nylon fitting, or the shoe. The Series 380 uses our 15-005 shoe that is 1" deep. The depth can be thought of the 'heel-to-toe' measurement. It's possible your balance has a shoe that is 7/8" deep, like our 15-029 . None of our stock balances uses this shoe; but we'll be able to help you anyway. Let me know if that's indeed the case. 

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