Window balance broken

A quick learner from Williamstown New Jersey 08094 says:
February 4, 2021
When opening my window, it doesn't stay up. However it slams closed. Looking for something to hold it open.
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Bob from SWISCO responded:
February 8, 2021

This appears to be our 15-180 Pivot Shoe. This shoe uses our Series 190 Coil Balances. Let me know if you have any questions. 
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
Coil Balance Clip
Coil Balance Clip
15-186
$5.05
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