Marvin window cranks and cover

A home owner from South Burlington, Vermont says:
Hi there-
I have Marvin windows but not sure of the age of them. I am hoping to replace the existing cranks and covers with white ones.
I have attached pictures for your reference. I need 5 sets for the first room we are redoing but will need a total 24 sets.
Thanks
Tim
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Lauren from SWISCO responded:

Hello, thank you for posting! 

Please start by reviewing our 39-107 cover and 39-114L handle. This handle fits onto a 11/32" spline size. Please compare the dimensions for a good fit! 

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