Window closing mechanism

A quick learner from Farmington Hills, MI says:
February 15, 2021
I just purchased a house in Farmington hills Michigan. Most windows have these type of closing mechanisms took pictures that I saw but don't know what their replacements are.

Can you please assist
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Casey from SWISCO responded:
February 17, 2021

Hello,

Take a look and compare the dimensions of our 39-140 operator to yours. Thanks for posting! 
Dual Arm Crank, 21-1/2"
Dual Arm Crank, 21-1/2"
39-083
$55.87
Dual Arm Crank, 16"
Dual Arm Crank, 16"
39-140
$53.95
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